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9100056 = 233754167
BaseRepresentation
bin100010101101…
…101100011000
3122010022221010
4202231230120
54312200211
6523013520
7140230530
oct42555430
918108833
109100056
115156009
12306a2a0
131b68064
1412cc4c0
15beb4a6
hex8adb18

9100056 has 32 divisors (see below), whose sum is σ = 26000640. Its totient is φ = 2599968.

The previous prime is 9100051. The next prime is 9100061. The reversal of 9100056 is 6500019.

It is an interprime number because it is at equal distance from previous prime (9100051) and next prime (9100061).

It is a super-2 number, since 2×91000562 = 165622038406272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9100051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26916 + ... + 27251.

It is an arithmetic number, because the mean of its divisors is an integer number (812520).

Almost surely, 29100056 is an apocalyptic number.

It is an amenable number.

9100056 is an abundant number, since it is smaller than the sum of its proper divisors (16900584).

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

9100056 is a wasteful number, since it uses less digits than its factorization.

9100056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54183 (or 54179 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 9100056 is about 3016.6299076950. The cubic root of 9100056 is about 208.7763761238.

The spelling of 9100056 in words is "nine million, one hundred thousand, fifty-six".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 54167 108334 162501 216668 325002 379169 433336 650004 758338 1137507 1300008 1516676 2275014 3033352 4550028 9100056