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90071464 = 2376312549
BaseRepresentation
bin1010101111001…
…10000110101000
320021111002211011
411113212012220
5141024241324
612534313304
72142411010
oct527460650
9207432734
1090071464
114693002a
12261b8834
1315878632
14bd68c40
157d92c94
hex55e61a8

90071464 has 32 divisors (see below), whose sum is σ = 193392000. Its totient is φ = 38525760.

The previous prime is 90071447. The next prime is 90071467. The reversal of 90071464 is 46417009.

It is a super-2 number, since 2×900714642 = 16225737254206592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90071467) 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 7 ways as a sum of consecutive naturals, for example, 34062 + ... + 36610.

It is an arithmetic number, because the mean of its divisors is an integer number (6043500).

Almost surely, 290071464 is an apocalyptic number.

It is an amenable number.

90071464 is an abundant number, since it is smaller than the sum of its proper divisors (103320536).

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

90071464 is a wasteful number, since it uses less digits than its factorization.

90071464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193 (or 3189 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 90071464 is about 9490.5987166248. The cubic root of 90071464 is about 448.2590577592.

The spelling of 90071464 in words is "ninety million, seventy-one thousand, four hundred sixty-four".

Divisors: 1 2 4 7 8 14 28 56 631 1262 2524 2549 4417 5048 5098 8834 10196 17668 17843 20392 35336 35686 71372 142744 1608419 3216838 6433676 11258933 12867352 22517866 45035732 90071464