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90200372 = 22191186847
BaseRepresentation
bin1010110000001…
…01100100110100
320021201122122112
411120011210310
5141042402442
612541150152
72143455563
oct530054464
9207648575
1090200372
1146a08969
122625b358
13158c2202
14bd9dbda
157dbb082
hex5605934

90200372 has 12 divisors (see below), whose sum is σ = 166158720. Its totient is φ = 42726456.

The previous prime is 90200311. The next prime is 90200381. The reversal of 90200372 is 27300209.

It is a super-2 number, since 2×902003722 = 16272214217876768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593348 + ... + 593499.

It is an arithmetic number, because the mean of its divisors is an integer number (13846560).

Almost surely, 290200372 is an apocalyptic number.

It is an amenable number.

90200372 is a deficient number, since it is larger than the sum of its proper divisors (75958348).

90200372 is a wasteful number, since it uses less digits than its factorization.

90200372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186870 (or 1186868 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 90200372 is about 9497.3876408200. The cubic root of 90200372 is about 448.4728014968.

The spelling of 90200372 in words is "ninety million, two hundred thousand, three hundred seventy-two".

Divisors: 1 2 4 19 38 76 1186847 2373694 4747388 22550093 45100186 90200372