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90337031 = 1723231041
BaseRepresentation
bin1010110001001…
…10111100000111
320021222121002222
411120212330013
5141111241111
612544122555
72144565161
oct530467407
9207877088
1090337031
1146aa1604
122630645b
131593c485
14bdd7931
157de67db
hex5626f07

90337031 has 8 divisors (see below), whose sum is σ = 99810144. Its totient is φ = 81326080.

The previous prime is 90337021. The next prime is 90337033. The reversal of 90337031 is 13073309.

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

It is a cyclic number.

It is not a de Polignac number, because 90337031 - 210 = 90336007 is a prime.

It is a super-2 number, since 2×903370312 = 16321558339789922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90337033) 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, 115130 + ... + 115911.

It is an arithmetic number, because the mean of its divisors is an integer number (12476268).

Almost surely, 290337031 is an apocalyptic number.

90337031 is a deficient number, since it is larger than the sum of its proper divisors (9473113).

90337031 is a wasteful number, since it uses less digits than its factorization.

90337031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231081.

The product of its (nonzero) digits is 1701, while the sum is 26.

The square root of 90337031 is about 9504.5794751793. The cubic root of 90337031 is about 448.6991749868.

The spelling of 90337031 in words is "ninety million, three hundred thirty-seven thousand, thirty-one".

Divisors: 1 17 23 391 231041 3927697 5313943 90337031