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102431321300 = 225271159322433
BaseRepresentation
bin101111101100101100…
…0011110110011010100
3100210101121121021001202
41133121120132303110
53134234404240200
6115020054412032
710254225602540
oct1373130366324
9323347537052
10102431321300
113a4938a0850
1217a28061018
1398754438b9
144d59d14a20
1529e78eb1d5
hex17d961ecd4

102431321300 has 144 divisors (see below), whose sum is σ = 277602982272. Its totient is φ = 31871385600.

The previous prime is 102431321281. The next prime is 102431321303. The reversal of 102431321300 is 3123134201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102431321303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4554884 + ... + 4577316.

It is an arithmetic number, because the mean of its divisors is an integer number (1927798488).

Almost surely, 2102431321300 is an apocalyptic number.

102431321300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102431321300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138801491136).

102431321300 is an abundant number, since it is smaller than the sum of its proper divisors (175171660972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102431321300 is a wasteful number, since it uses less digits than its factorization.

102431321300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23058 (or 23051 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 102431321300 its reverse (3123134201), we get a palindrome (105554455501).

The spelling of 102431321300 in words is "one hundred two billion, four hundred thirty-one million, three hundred twenty-one thousand, three hundred".

Divisors: 1 2 4 5 7 10 11 14 20 22 25 28 35 44 50 55 70 77 100 110 140 154 175 220 275 308 350 385 550 593 700 770 1100 1186 1540 1925 2372 2965 3850 4151 5930 6523 7700 8302 11860 13046 14825 16604 20755 22433 26092 29650 32615 41510 44866 45661 59300 65230 83020 89732 91322 103775 112165 130460 157031 163075 182644 207550 224330 228305 246763 314062 326150 415100 448660 456610 493526 560825 628124 652300 785155 913220 987052 1121650 1141525 1233815 1570310 1727341 2243300 2283050 2467630 3140620 3454682 3925775 4566100 4935260 6169075 6909364 7851550 8636705 12338150 13302769 15703100 17273410 24676300 26605538 34546820 43183525 53211076 66513845 86367050 93119383 133027690 146330459 172734100 186238766 266055380 292660918 332569225 372477532 465596915 585321836 665138450 731652295 931193830 1024313213 1330276900 1463304590 1862387660 2048626426 2327984575 2926609180 3658261475 4097252852 4655969150 5121566065 7316522950 9311938300 10243132130 14633045900 20486264260 25607830325 51215660650 102431321300