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12402430881236 = 22113721136105217
BaseRepresentation
bin1011010001111010101001…
…1111001010110111010100
31121220122211201210000221122
42310132222133022313110
53111200134301144421
642213333104303112
72420021541035564
oct264365237126724
947818751700848
1012402430881236
113a519289a1260
121483811011a98
136bc70c839996
1430c3d095cda4
15167937e402ab
hexb47aa7cadd4

12402430881236 has 48 divisors (see below), whose sum is σ = 24432545441472. Its totient is φ = 5459108659200.

The previous prime is 12402430881229. The next prime is 12402430881283. The reversal of 12402430881236 is 63218803420421.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 17709101 + ... + 18396116.

It is an arithmetic number, because the mean of its divisors is an integer number (509011363364).

Almost surely, 212402430881236 is an apocalyptic number.

It is an amenable number.

12402430881236 is a deficient number, since it is larger than the sum of its proper divisors (12030114560236).

12402430881236 is a wasteful number, since it uses less digits than its factorization.

12402430881236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36105480 (or 36105478 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 12402430881236 in words is "twelve trillion, four hundred two billion, four hundred thirty million, eight hundred eighty-one thousand, two hundred thirty-six".

Divisors: 1 2 4 11 22 37 44 74 148 211 407 422 814 844 1628 2321 4642 7807 9284 15614 31228 85877 171754 343508 36105217 72210434 144420868 397157387 794314774 1335893029 1588629548 2671786058 5343572116 7618200787 14694823319 15236401574 29389646638 30472803148 58779293276 83800208657 167600417314 281873429119 335200834628 563746858238 1127493716476 3100607720309 6201215440618 12402430881236