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90733038 = 23111374743
BaseRepresentation
bin1010110100001…
…11100111101110
320022201201022220
411122013213232
5141211424123
613000420210
72151134544
oct532074756
9208651286
1090733038
1147242090
1226477666
1315a4a7b6
14c09bd94
157e73ce3
hex56879ee

90733038 has 16 divisors (see below), whose sum is σ = 197963136. Its totient is φ = 27494840.

The previous prime is 90733033. The next prime is 90733039. The reversal of 90733038 is 83033709.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90733033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687306 + ... + 687437.

It is an arithmetic number, because the mean of its divisors is an integer number (12372696).

Almost surely, 290733038 is an apocalyptic number.

90733038 is an abundant number, since it is smaller than the sum of its proper divisors (107230098).

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

90733038 is a wasteful number, since it uses less digits than its factorization.

90733038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374759.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 90733038 is about 9525.3891259098. The cubic root of 90733038 is about 449.3538677572.

The spelling of 90733038 in words is "ninety million, seven hundred thirty-three thousand, thirty-eight".

Divisors: 1 2 3 6 11 22 33 66 1374743 2749486 4124229 8248458 15122173 30244346 45366519 90733038