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90725676 = 2237560473
BaseRepresentation
bin1010110100001…
…01110100101100
320022201100020020
411122011310230
5141211210201
613000322140
72151104226
oct532056454
9208640206
1090725676
11472375a8
1226473350
1315a47342
14c099416
157e71a36
hex5685d2c

90725676 has 12 divisors (see below), whose sum is σ = 211693272. Its totient is φ = 30241888.

The previous prime is 90725669. The next prime is 90725681. The reversal of 90725676 is 67652709.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×907256762 = 16462296571313952, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3780225 + ... + 3780248.

It is an arithmetic number, because the mean of its divisors is an integer number (17641106).

Almost surely, 290725676 is an apocalyptic number.

It is an amenable number.

90725676 is an abundant number, since it is smaller than the sum of its proper divisors (120967596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90725676 is a wasteful number, since it uses less digits than its factorization.

90725676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7560480 (or 7560478 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 90725676 is about 9525.0026771650. The cubic root of 90725676 is about 449.3417140341.

The spelling of 90725676 in words is "ninety million, seven hundred twenty-five thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 12 7560473 15120946 22681419 30241892 45362838 90725676