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90038676 = 223721311779
BaseRepresentation
bin1010101110111…
…10000110010100
320021102102211210
411113132012110
5141022214201
612533501420
72142213300
oct527360624
9207372753
1090038676
1146908432
12261a1870
1315866730
14bd5ad00
157d881d6
hex55de194

90038676 has 72 divisors (see below), whose sum is σ = 263212320. Its totient is φ = 23744448.

The previous prime is 90038657. The next prime is 90038677. The reversal of 90038676 is 67683009.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90038677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1755 + ... + 13533.

Almost surely, 290038676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90038676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131606160).

90038676 is an abundant number, since it is smaller than the sum of its proper divisors (173173644).

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

90038676 is a wasteful number, since it uses less digits than its factorization.

90038676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11813 (or 11804 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 90038676 is about 9488.8711657394. The cubic root of 90038676 is about 448.2046590959.

The spelling of 90038676 in words is "ninety million, thirty-eight thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 49 52 78 84 91 98 147 156 182 196 273 294 364 546 588 637 1092 1274 1911 2548 3822 7644 11779 23558 35337 47116 70674 82453 141348 153127 164906 247359 306254 329812 459381 494718 577171 612508 918762 989436 1071889 1154342 1731513 1837524 2143778 2308684 3215667 3463026 4287556 6431334 6926052 7503223 12862668 15006446 22509669 30012892 45019338 90038676