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10131211230 = 235761790883
BaseRepresentation
bin10010110111101111…
…00000001111011110
3222011001122212002120
421123313200033132
5131222042224410
64353151003410
7506026605660
oct113367401736
928131585076
1010131211230
114329893a48
121b68b09566
13c55c3b35a
146c175a530
153e467a570
hex25bde03de

10131211230 has 64 divisors (see below), whose sum is σ = 28244049408. Its totient is φ = 2277740160.

The previous prime is 10131211201. The next prime is 10131211249. The reversal of 10131211230 is 3211213101.

It is a happy number.

It is a super-2 number, since 2×101312112302 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382632 + ... + 408251.

It is an arithmetic number, because the mean of its divisors is an integer number (441313272).

Almost surely, 210131211230 is an apocalyptic number.

10131211230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10131211230 is an abundant number, since it is smaller than the sum of its proper divisors (18112838178).

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

10131211230 is a wasteful number, since it uses less digits than its factorization.

10131211230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790961.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10131211230 its reverse (3211213101), we get a palindrome (13342424331).

The spelling of 10131211230 in words is "ten billion, one hundred thirty-one million, two hundred eleven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 61 70 105 122 183 210 305 366 427 610 854 915 1281 1830 2135 2562 4270 6405 12810 790883 1581766 2372649 3954415 4745298 5536181 7908830 11072362 11863245 16608543 23726490 27680905 33217086 48243863 55361810 83042715 96487726 144731589 166085430 241219315 289463178 337707041 482438630 675414082 723657945 1013121123 1447315890 1688535205 2026242246 3377070410 5065605615 10131211230