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20482488 = 23321379277
BaseRepresentation
bin100111000100…
…0100110111000
31102112121200200
41032020212320
520220414423
62011002200
7336045465
oct116104670
942477620
1020482488
111061a884
126a39360
134321c20
142a1266c
151be8d43
hex13889b8

20482488 has 96 divisors (see below), whose sum is σ = 60715200. Its totient is φ = 6200064.

The previous prime is 20482481. The next prime is 20482529. The reversal of 20482488 is 88428402.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20482481) 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 23 ways as a sum of consecutive naturals, for example, 73806 + ... + 74082.

It is an arithmetic number, because the mean of its divisors is an integer number (632450).

Almost surely, 220482488 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 20482488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30357600).

20482488 is an abundant number, since it is smaller than the sum of its proper divisors (40232712).

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

20482488 is a wasteful number, since it uses less digits than its factorization.

20482488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The square root of 20482488 is about 4525.7582790070. The cubic root of 20482488 is about 273.6072302388.

The spelling of 20482488 in words is "twenty million, four hundred eighty-two thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 79 104 117 156 158 234 237 277 312 316 468 474 554 632 711 831 936 948 1027 1108 1422 1662 1896 2054 2216 2493 2844 3081 3324 3601 4108 4986 5688 6162 6648 7202 8216 9243 9972 10803 12324 14404 18486 19944 21606 21883 24648 28808 32409 36972 43212 43766 64818 65649 73944 86424 87532 129636 131298 175064 196947 259272 262596 284479 393894 525192 568958 787788 853437 1137916 1575576 1706874 2275832 2560311 3413748 5120622 6827496 10241244 20482488