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90233382 = 23172233967
BaseRepresentation
bin1010110000011…
…01101000100110
320021210022221010
411120031220212
5141044432012
612542003050
72143654041
oct530155046
9207708833
1090233382
1146a30748
1226276486
1315904245
14bdabc58
157dc5c3c
hex560da26

90233382 has 32 divisors (see below), whose sum is σ = 191987712. Its totient is φ = 28174464.

The previous prime is 90233369. The next prime is 90233383. The reversal of 90233382 is 28333209.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90233383) 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, 20763 + ... + 24729.

It is an arithmetic number, because the mean of its divisors is an integer number (5999616).

Almost surely, 290233382 is an apocalyptic number.

90233382 is an abundant number, since it is smaller than the sum of its proper divisors (101754330).

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

90233382 is a wasteful number, since it uses less digits than its factorization.

90233382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 90233382 is about 9499.1253281552. The cubic root of 90233382 is about 448.5275029772.

The spelling of 90233382 in words is "ninety million, two hundred thirty-three thousand, three hundred eighty-two".

Divisors: 1 2 3 6 17 34 51 102 223 446 669 1338 3791 3967 7582 7934 11373 11901 22746 23802 67439 134878 202317 404634 884641 1769282 2653923 5307846 15038897 30077794 45116691 90233382