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90367131 = 390733211
BaseRepresentation
bin1010110001011…
…10010010011011
320022001010101210
411120232102123
5141113222011
612544514203
72145052011
oct530562233
9208033353
1090367131
1147012188
122631b963
131595009a
14c0048b1
157e006a6
hex562e49b

90367131 has 8 divisors (see below), whose sum is σ = 120625984. Its totient is φ = 60176520.

The previous prime is 90367099. The next prime is 90367133. The reversal of 90367131 is 13176309.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90367131 - 25 = 90367099 is a prime.

It is a super-2 number, since 2×903671312 = 16332436730342322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90367133) 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, 13885 + ... + 19326.

It is an arithmetic number, because the mean of its divisors is an integer number (15078248).

Almost surely, 290367131 is an apocalyptic number.

90367131 is a deficient number, since it is larger than the sum of its proper divisors (30258853).

90367131 is a wasteful number, since it uses less digits than its factorization.

90367131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34121.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 90367131 is about 9506.1627905270. The cubic root of 90367131 is about 448.7490044800.

The spelling of 90367131 in words is "ninety million, three hundred sixty-seven thousand, one hundred thirty-one".

Divisors: 1 3 907 2721 33211 99633 30122377 90367131