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32131001005 = 510196306379
BaseRepresentation
bin11101111011001010…
…000010101010101101
310001221021010222012021
4131323022002222231
51011301014013010
622432154510141
72215144000525
oct357312025255
9101837128167
1032131001005
1112699126694
126288735351
133050a1873c
1417ab484685
15c80c668da
hex77b282aad

32131001005 has 8 divisors (see below), whose sum is σ = 38595045600. Its totient is φ = 25679571216.

The previous prime is 32131000997. The next prime is 32131001009. The reversal of 32131001005 is 50010013123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32131001005 - 23 = 32131000997 is a prime.

It is a super-2 number, since 2×321310010052 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32131001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32131001009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3148095 + ... + 3158284.

It is an arithmetic number, because the mean of its divisors is an integer number (4824380700).

Almost surely, 232131001005 is an apocalyptic number.

It is an amenable number.

32131001005 is a deficient number, since it is larger than the sum of its proper divisors (6464044595).

32131001005 is a wasteful number, since it uses less digits than its factorization.

32131001005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307403.

The product of its (nonzero) digits is 90, while the sum is 16.

Adding to 32131001005 its reverse (50010013123), we get a palindrome (82141014128).

The spelling of 32131001005 in words is "thirty-two billion, one hundred thirty-one million, one thousand, five".

Divisors: 1 5 1019 5095 6306379 31531895 6426200201 32131001005