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32070004561 = 72255832
BaseRepresentation
bin11101110111100001…
…010110111101010001
310001210000101000210201
4131313201112331101
51011134410121221
622422135255201
72213503353400
oct356741267521
9101700330721
1032070004561
1112667755101
12627021a501
1330411b007a
1417a3327637
15c7a718891
hex777856f51

32070004561 has 9 divisors (see below), whose sum is σ = 37307381961. Its totient is φ = 27487500852.

The previous prime is 32070004559. The next prime is 32070004579. The reversal of 32070004561 is 16540007023.

The square root of 32070004561 is 179081.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 32070004561 - 21 = 32070004559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32070004591) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1240776 + ... + 1266358.

Almost surely, 232070004561 is an apocalyptic number.

32070004561 is the 179081-st square number.

32070004561 is the 89541-st centered octagonal number.

It is an amenable number.

32070004561 is a deficient number, since it is larger than the sum of its proper divisors (5237377400).

32070004561 is an frugal number, since it uses more digits than its factorization.

32070004561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51180 (or 25590 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The spelling of 32070004561 in words is "thirty-two billion, seventy million, four thousand, five hundred sixty-one".

Divisors: 1 7 49 25583 179081 1253567 654489889 4581429223 32070004561