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54987996 = 22372175501
BaseRepresentation
bin1101000111000…
…0110011011100
310211110200100110
43101300303130
5103034103441
65242330020
71235250600
oct321606334
9124420313
1054987996
1129048328
12164b9910
13b51389b
147435500
154c62b16
hex3470cdc

54987996 has 72 divisors (see below), whose sum is σ = 158061456. Its totient is φ = 14784000.

The previous prime is 54987991. The next prime is 54988007. The reversal of 54987996 is 69978945.

54987996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54987991) 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 23 ways as a sum of consecutive naturals, for example, 7246 + ... + 12746.

It is an arithmetic number, because the mean of its divisors is an integer number (2195298).

Almost surely, 254987996 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 54987996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79030728).

54987996 is an abundant number, since it is smaller than the sum of its proper divisors (103073460).

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

54987996 is a wasteful number, since it uses less digits than its factorization.

54987996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5539 (or 5530 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 57.

The square root of 54987996 is about 7415.3891334171. The cubic root of 54987996 is about 380.2675770077.

The spelling of 54987996 in words is "fifty-four million, nine hundred eighty-seven thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 7 12 14 17 21 28 34 42 49 51 68 84 98 102 119 147 196 204 238 294 357 476 588 714 833 1428 1666 2499 3332 4998 5501 9996 11002 16503 22004 33006 38507 66012 77014 93517 115521 154028 187034 231042 269549 280551 374068 462084 539098 561102 654619 808647 1078196 1122204 1309238 1617294 1963857 2618476 3234588 3927714 4582333 7855428 9164666 13746999 18329332 27493998 54987996