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90682904 = 23137112281
BaseRepresentation
bin1010110011110…
…11011000011000
320022122011120002
411121323120120
5141203323104
612555352132
72150535434
oct531733030
9208564502
1090682904
1147208454
1226452648
1315a30a30
14c0879c4
157e6401e
hex567b618

90682904 has 32 divisors (see below), whose sum is σ = 185703840. Its totient is φ = 41260800.

The previous prime is 90682897. The next prime is 90682919. The reversal of 90682904 is 40928609.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1244 + ... + 13524.

It is an arithmetic number, because the mean of its divisors is an integer number (5803245).

Almost surely, 290682904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90682904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92851920).

90682904 is an abundant number, since it is smaller than the sum of its proper divisors (95020936).

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

90682904 is a wasteful number, since it uses less digits than its factorization.

90682904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12371 (or 12367 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 90682904 is about 9522.7571637630. The cubic root of 90682904 is about 449.2710899076.

The spelling of 90682904 in words is "ninety million, six hundred eighty-two thousand, nine hundred four".

Divisors: 1 2 4 8 13 26 52 71 104 142 284 568 923 1846 3692 7384 12281 24562 49124 98248 159653 319306 638612 871951 1277224 1743902 3487804 6975608 11335363 22670726 45341452 90682904