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90382656 = 2637213739
BaseRepresentation
bin1010110001100…
…10000101000000
320022001220200210
411120302011000
5141114221111
612545114120
72145145200
oct530620500
9208056623
1090382656
1147022911
1226328940
1315957180
14c00a400
157e050a6
hex5632140

90382656 has 168 divisors, whose sum is σ = 299984160. Its totient is φ = 23804928.

The previous prime is 90382651. The next prime is 90382657. The reversal of 90382656 is 65628309.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×903826562 = 16338049011228672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90382651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121935 + ... + 122673.

It is an arithmetic number, because the mean of its divisors is an integer number (1785620).

Almost surely, 290382656 is an apocalyptic number.

90382656 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90382656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149992080).

90382656 is an abundant number, since it is smaller than the sum of its proper divisors (209601504).

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

90382656 is a wasteful number, since it uses less digits than its factorization.

90382656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 90382656 is about 9506.9793309968. The cubic root of 90382656 is about 448.7747012471.

The spelling of 90382656 in words is "ninety million, three hundred eighty-two thousand, six hundred fifty-six".