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90624443 = 7138211213
BaseRepresentation
bin1010110011011…
…01000110111011
320022112012100212
411121231012323
5141144440233
612554221335
72150203130
oct531550673
9208465325
1090624443
1147178538
122642484b
1315a10240
14c070587
157e51a48
hex566d1bb

90624443 has 16 divisors (see below), whose sum is σ = 111765696. Its totient is φ = 71556480.

The previous prime is 90624437. The next prime is 90624451. The reversal of 90624443 is 34442609.

It is a cyclic number.

It is not a de Polignac number, because 90624443 - 24 = 90624427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90624403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74105 + ... + 75317.

It is an arithmetic number, because the mean of its divisors is an integer number (6985356).

Almost surely, 290624443 is an apocalyptic number.

90624443 is a deficient number, since it is larger than the sum of its proper divisors (21141253).

90624443 is a wasteful number, since it uses less digits than its factorization.

90624443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 90624443 is about 9519.6871272117. The cubic root of 90624443 is about 449.1745245421.

The spelling of 90624443 in words is "ninety million, six hundred twenty-four thousand, four hundred forty-three".

Divisors: 1 7 13 91 821 1213 5747 8491 10673 15769 74711 110383 995873 6971111 12946349 90624443