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11831664136470 = 2351013904839649
BaseRepresentation
bin1010110000101100011000…
…1000110101000100010110
31112220002121000110012202020
42230023012020311010112
53022322222004331340
641055220320154010
72330544444540123
oct254130610650426
945802530405666
1011831664136470
113851864a55032
1213b1080468906
1367a94b466249
142cc926d7374a
15157b7e7429d0
hexac2c6235116

11831664136470 has 32 divisors (see below), whose sum is σ = 28677142389600. Its totient is φ = 3123871718400.

The previous prime is 11831664136469. The next prime is 11831664136483. The reversal of 11831664136470 is 7463146613811.

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, 1952416795 + ... + 1952422854.

It is an arithmetic number, because the mean of its divisors is an integer number (896160699675).

Almost surely, 211831664136470 is an apocalyptic number.

11831664136470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11831664136470 is an abundant number, since it is smaller than the sum of its proper divisors (16845478253130).

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

11831664136470 is a wasteful number, since it uses less digits than its factorization.

11831664136470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904839760.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 11831664136470 in words is "eleven trillion, eight hundred thirty-one billion, six hundred sixty-four million, one hundred thirty-six thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 101 202 303 505 606 1010 1515 3030 3904839649 7809679298 11714518947 19524198245 23429037894 39048396490 58572594735 117145189470 394388804549 788777609098 1183166413647 1971944022745 2366332827294 3943888045490 5915832068235 11831664136470