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31794372001 = 74542053143
BaseRepresentation
bin11101100111000101…
…111001110110100001
310001001210201110000101
4131213011321312201
51010103324401001
622334531422401
72203615463050
oct354705716641
9101053643011
1031794372001
11125361042a7
1261b3a54a01
132cc9064592
141778898397
15c6141ea01
hex767179da1

31794372001 has 4 divisors (see below), whose sum is σ = 36336425152. Its totient is φ = 27252318852.

The previous prime is 31794371933. The next prime is 31794372013. The reversal of 31794372001 is 10027349713.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31794372001 - 219 = 31793847713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31794372601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2271026565 + ... + 2271026578.

It is an arithmetic number, because the mean of its divisors is an integer number (9084106288).

Almost surely, 231794372001 is an apocalyptic number.

It is an amenable number.

31794372001 is a deficient number, since it is larger than the sum of its proper divisors (4542053151).

31794372001 is an equidigital number, since it uses as much as digits as its factorization.

31794372001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542053150.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 31794372001 in words is "thirty-one billion, seven hundred ninety-four million, three hundred seventy-two thousand, one".

Divisors: 1 7 4542053143 31794372001