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90464080 = 2457161543
BaseRepresentation
bin1010110010001…
…01111101010000
320022020001101111
411121011331100
5141124322310
612550543104
72145634450
oct531057520
9208201344
1090464080
1147079003
1226367a94
1315985255
14c02bd60
157e1e28a
hex5645f50

90464080 has 40 divisors (see below), whose sum is σ = 240377472. Its totient is φ = 31016064.

The previous prime is 90464053. The next prime is 90464117. The reversal of 90464080 is 8046409.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 80212 + ... + 81331.

Almost surely, 290464080 is an apocalyptic number.

It is an amenable number.

90464080 is an abundant number, since it is smaller than the sum of its proper divisors (149913392).

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

90464080 is a wasteful number, since it uses less digits than its factorization.

90464080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161563 (or 161557 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 90464080 is about 9511.2606945662. The cubic root of 90464080 is about 448.9094249701.

The spelling of 90464080 in words is "ninety million, four hundred sixty-four thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 161543 323086 646172 807715 1130801 1292344 1615430 2261602 2584688 3230860 4523204 5654005 6461720 9046408 11308010 12923440 18092816 22616020 45232040 90464080