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190037642537 = 37431131318069
BaseRepresentation
bin1011000011111100100…
…0000100110100101001
3200011112001100111020002
42300333020010310221
511103144114030122
6223145130112345
716505211211031
oct2607710046451
9604461314202
10190037642537
117365a327626
12309b727b6b5
1314bc73814c2
1492aad5a8c1
154e23a4e992
hex2c3f204d29

190037642537 has 32 divisors (see below), whose sum is σ = 203043265920. Its totient is φ = 177614760960.

The previous prime is 190037642479. The next prime is 190037642551. The reversal of 190037642537 is 735246730091.

It is a cyclic number.

It is not a de Polignac number, because 190037642537 - 210 = 190037641513 is a prime.

It is a super-2 number, since 2×1900376425372 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190037642491 and 190037642500.

It is not an unprimeable number, because it can be changed into a prime (190037602537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23547539 + ... + 23555607.

It is an arithmetic number, because the mean of its divisors is an integer number (6345102060).

Almost surely, 2190037642537 is an apocalyptic number.

It is an amenable number.

190037642537 is a deficient number, since it is larger than the sum of its proper divisors (13005623383).

190037642537 is a wasteful number, since it uses less digits than its factorization.

190037642537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8393.

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 190037642537 in words is "one hundred ninety billion, thirty-seven million, six hundred forty-two thousand, five hundred thirty-seven".

Divisors: 1 37 43 113 131 1591 4181 4847 4859 5633 8069 14803 179783 208421 298553 346967 547711 636529 911797 1057039 12837779 23551573 33736489 39110443 39207271 45452677 119445407 1450669027 1681749049 4419480059 5136152501 190037642537