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103431210140 = 22543317379397
BaseRepresentation
bin110000001010011111…
…0110000010010011100
3100212222022001212200202
41200110332300102130
53143311342211030
6115303213443032
710321056531416
oct1402476602234
9325868055622
10103431210140
113a957249065
1218066aa0478
1399a46422bb
145012a339b6
152a555a9745
hex1814fb049c

103431210140 has 48 divisors (see below), whose sum is σ = 222958546272. Its totient is φ = 40282749696.

The previous prime is 103431210073. The next prime is 103431210167. The reversal of 103431210140 is 41012134301.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82922 + ... + 462318.

It is an arithmetic number, because the mean of its divisors is an integer number (4644969714).

Almost surely, 2103431210140 is an apocalyptic number.

103431210140 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 103431210140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111479273136).

103431210140 is an abundant number, since it is smaller than the sum of its proper divisors (119527336132).

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

103431210140 is a wasteful number, since it uses less digits than its factorization.

103431210140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379766 (or 379764 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 103431210140 its reverse (41012134301), we get a palindrome (144443344441).

The spelling of 103431210140 in words is "one hundred three billion, four hundred thirty-one million, two hundred ten thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 43 86 172 215 317 430 634 860 1268 1585 3170 6340 13631 27262 54524 68155 136310 272620 379397 758794 1517588 1896985 3793970 7587940 16314071 32628142 65256284 81570355 120268849 163140710 240537698 326281420 481075396 601344245 1202688490 2405376980 5171560507 10343121014 20686242028 25857802535 51715605070 103431210140