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90950816 = 25111715199
BaseRepresentation
bin1010110101111…
…00110010100000
320100010210001202
411122330302200
5141240411231
613005220332
72153032505
oct532746240
9210123052
1090950816
1147380770
12265616a8
1315ac5968
14c1174ac
157eb85cb
hex56bcca0

90950816 has 48 divisors (see below), whose sum is σ = 206841600. Its totient is φ = 38906880.

The previous prime is 90950813. The next prime is 90950831. The reversal of 90950816 is 61805909.

It is a self number, because there is not a number n which added to its sum of digits gives 90950816.

It is not an unprimeable number, because it can be changed into a prime (90950813) 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, 1616 + ... + 13583.

It is an arithmetic number, because the mean of its divisors is an integer number (4309200).

Almost surely, 290950816 is an apocalyptic number.

It is an amenable number.

90950816 is an abundant number, since it is smaller than the sum of its proper divisors (115890784).

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

90950816 is a wasteful number, since it uses less digits than its factorization.

90950816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15237 (or 15229 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 90950816 is about 9536.8137236710. The cubic root of 90950816 is about 449.7130944834.

The spelling of 90950816 in words is "ninety million, nine hundred fifty thousand, eight hundred sixteen".

Divisors: 1 2 4 8 11 16 17 22 32 34 44 68 88 136 176 187 272 352 374 544 748 1496 2992 5984 15199 30398 60796 121592 167189 243184 258383 334378 486368 516766 668756 1033532 1337512 2067064 2675024 2842213 4134128 5350048 5684426 8268256 11368852 22737704 45475408 90950816