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90620313 = 378351991
BaseRepresentation
bin1010110011011…
…00000110011001
320022111222200220
411121230012121
5141144322223
612554150253
72150155110
oct531540631
9208458626
1090620313
1147175423
1226422389
1315a0b3b4
14c06cc77
157e506e3
hex566c199

90620313 has 16 divisors (see below), whose sum is σ = 139754496. Its totient is φ = 51158160.

The previous prime is 90620297. The next prime is 90620317. The reversal of 90620313 is 31302609.

It is not a de Polignac number, because 90620313 - 24 = 90620297 is a prime.

It is a super-2 number, since 2×906203132 = 16424082256435938, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90620317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24253 + ... + 27738.

It is an arithmetic number, because the mean of its divisors is an integer number (8734656).

Almost surely, 290620313 is an apocalyptic number.

It is an amenable number.

90620313 is a deficient number, since it is larger than the sum of its proper divisors (49134183).

90620313 is a wasteful number, since it uses less digits than its factorization.

90620313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52084.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 90620313 is about 9519.4702058465. The cubic root of 90620313 is about 449.1677010741.

The spelling of 90620313 in words is "ninety million, six hundred twenty thousand, three hundred thirteen".

Divisors: 1 3 7 21 83 249 581 1743 51991 155973 363937 1091811 4315253 12945759 30206771 90620313