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90674440 = 2352266861
BaseRepresentation
bin1010110011110…
…01010100001000
320022121201221121
411121321110020
5141203040230
612555245024
72150501653
oct531712410
9208551847
1090674440
114720205a
1226449774
1315a29c1c
14c08489a
157e6177a
hex5679508

90674440 has 16 divisors (see below), whose sum is σ = 204017580. Its totient is φ = 36269760.

The previous prime is 90674407. The next prime is 90674453. The reversal of 90674440 is 4447609.

It can be written as a sum of positive squares in 2 ways, for example, as 89756676 + 917764 = 9474^2 + 958^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90674396 and 90674405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1133391 + ... + 1133470.

Almost surely, 290674440 is an apocalyptic number.

It is an amenable number.

90674440 is an abundant number, since it is smaller than the sum of its proper divisors (113343140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90674440 is a wasteful number, since it uses less digits than its factorization.

90674440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266872 (or 2266868 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 90674440 is about 9522.3127442864. The cubic root of 90674440 is about 449.2571117168.

The spelling of 90674440 in words is "ninety million, six hundred seventy-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 2266861 4533722 9067444 11334305 18134888 22668610 45337220 90674440