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90768275 = 5213367761
BaseRepresentation
bin1010110100100…
…00001110010011
320022210111122222
411122100032103
5141214041100
613001251255
72151342353
oct532201623
9208714588
1090768275
1147266604
1226493b2b
1315a60850
14c0aab63
157e7e485
hex5690393

90768275 has 24 divisors (see below), whose sum is σ = 121700544. Its totient is φ = 66758400.

The previous prime is 90768259. The next prime is 90768299. The reversal of 90768275 is 57286709.

It is not a de Polignac number, because 90768275 - 24 = 90768259 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118895 + ... + 119655.

It is an arithmetic number, because the mean of its divisors is an integer number (5070856).

Almost surely, 290768275 is an apocalyptic number.

90768275 is a deficient number, since it is larger than the sum of its proper divisors (30932269).

90768275 is a wasteful number, since it uses less digits than its factorization.

90768275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151 (or 1146 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 90768275 is about 9527.2385820866. The cubic root of 90768275 is about 449.4120304481.

The spelling of 90768275 in words is "ninety million, seven hundred sixty-eight thousand, two hundred seventy-five".

Divisors: 1 5 13 25 65 325 367 761 1835 3805 4771 9175 9893 19025 23855 49465 119275 247325 279287 1396435 3630731 6982175 18153655 90768275