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45520689 = 31071091301
BaseRepresentation
bin1010110110100…
…1011100110001
310011122200122110
42231221130301
543123130224
64303355533
71061630244
oct255513461
9104580573
1045520689
1123771405
12132b2ba9
13957a626
14608d25b
153ee2929
hex2b69731

45520689 has 16 divisors (see below), whose sum is σ = 61871040. Its totient is φ = 29764800.

The previous prime is 45520687. The next prime is 45520697. The reversal of 45520689 is 98602554.

It is not a de Polignac number, because 45520689 - 21 = 45520687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45520687) 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, 34339 + ... + 35639.

It is an arithmetic number, because the mean of its divisors is an integer number (3866940).

Almost surely, 245520689 is an apocalyptic number.

It is an amenable number.

45520689 is a deficient number, since it is larger than the sum of its proper divisors (16350351).

45520689 is a wasteful number, since it uses less digits than its factorization.

45520689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 45520689 is about 6746.9021780370. The cubic root of 45520689 is about 357.0559508694.

The spelling of 45520689 in words is "forty-five million, five hundred twenty thousand, six hundred eighty-nine".

Divisors: 1 3 107 109 321 327 1301 3903 11663 34989 139207 141809 417621 425427 15173563 45520689