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32130319987 = 1983197103423
BaseRepresentation
bin11101111011000111…
…011100011001110011
310001221012212101000101
4131323013130121303
51011300330214422
622432132133231
72215135133203
oct357307343163
9101835771011
1032130319987
1112698800a67
126288467217
13305083a77c
1417ab348403
15c80b7ec27
hex77b1dc673

32130319987 has 16 divisors (see below), whose sum is σ = 34402959360. Its totient is φ = 29919570912.

The previous prime is 32130319979. The next prime is 32130320003. The reversal of 32130319987 is 78991303123.

It is a cyclic number.

It is not a de Polignac number, because 32130319987 - 23 = 32130319979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32130319927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258958 + ... + 362380.

It is an arithmetic number, because the mean of its divisors is an integer number (2150184960).

Almost surely, 232130319987 is an apocalyptic number.

32130319987 is a deficient number, since it is larger than the sum of its proper divisors (2272639373).

32130319987 is a wasteful number, since it uses less digits than its factorization.

32130319987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103722.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 32130319987 in words is "thirty-two billion, one hundred thirty million, three hundred nineteen thousand, nine hundred eighty-seven".

Divisors: 1 19 83 197 1577 3743 16351 103423 310669 1965037 8584109 20374331 163098071 387112289 1691069473 32130319987