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90041757 = 31323372713
BaseRepresentation
bin1010101110111…
…10110110011101
320021102121001220
411113132312131
5141022314012
612533523553
72142225261
oct527366635
9207377056
1090041757
114690a783
12261a35b9
1315867c60
14bd5c0a1
157d8908c
hex55ded9d

90041757 has 32 divisors (see below), whose sum is σ = 138609408. Its totient is φ = 51549696.

The previous prime is 90041737. The next prime is 90041761. The reversal of 90041757 is 75714009.

It is not a de Polignac number, because 90041757 - 211 = 90039709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90041737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31833 + ... + 34545.

It is an arithmetic number, because the mean of its divisors is an integer number (4331544).

Almost surely, 290041757 is an apocalyptic number.

It is an amenable number.

90041757 is a deficient number, since it is larger than the sum of its proper divisors (48567651).

90041757 is a wasteful number, since it uses less digits than its factorization.

90041757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 90041757 is about 9489.0335124290. The cubic root of 90041757 is about 448.2097713538.

The spelling of 90041757 in words is "ninety million, forty-one thousand, seven hundred fifty-seven".

Divisors: 1 3 13 23 37 39 69 111 299 481 851 897 1443 2553 2713 8139 11063 33189 35269 62399 100381 105807 187197 301143 811187 1304953 2308763 2433561 3914859 6926289 30013919 90041757