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90684294 = 23109138661
BaseRepresentation
bin1010110011110…
…11101110000110
320022122020110120
411121323232012
5141203344134
612555402410
72150542461
oct531735606
9208566416
1090684294
11472094a8
1226453406
1315a3155c
14c0882d8
157e64649
hex567bb86

90684294 has 16 divisors (see below), whose sum is σ = 183033840. Its totient is φ = 29950560.

The previous prime is 90684287. The next prime is 90684311. The reversal of 90684294 is 49248609.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68677 + ... + 69984.

It is an arithmetic number, because the mean of its divisors is an integer number (11439615).

Almost surely, 290684294 is an apocalyptic number.

90684294 is an abundant number, since it is smaller than the sum of its proper divisors (92349546).

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

90684294 is a wasteful number, since it uses less digits than its factorization.

90684294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138775.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 90684294 is about 9522.8301465478. The cubic root of 90684294 is about 449.2733853922.

The spelling of 90684294 in words is "ninety million, six hundred eighty-four thousand, two hundred ninety-four".

Divisors: 1 2 3 6 109 218 327 654 138661 277322 415983 831966 15114049 30228098 45342147 90684294