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54387513928 = 23111496196701
BaseRepresentation
bin110010101001101111…
…111001101001001000
312012101100200222020201
4302221233321221020
51342341200421203
640552453101544
73633526145356
oct625157715110
9165340628221
1054387513928
112107a374220
12a65a3278b4
135189a50707
1428bd3187d6
151634b63e1d
hexca9bf9a48

54387513928 has 64 divisors (see below), whose sum is σ = 112191480000. Its totient is φ = 24512352000.

The previous prime is 54387513911. The next prime is 54387513941. The reversal of 54387513928 is 82931578345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8112978 + ... + 8119678.

It is an arithmetic number, because the mean of its divisors is an integer number (1752991875).

Almost surely, 254387513928 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 54387513928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56095740000).

54387513928 is an abundant number, since it is smaller than the sum of its proper divisors (57803966072).

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

54387513928 is a wasteful number, since it uses less digits than its factorization.

54387513928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7486 (or 7482 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 55.

The spelling of 54387513928 in words is "fifty-four billion, three hundred eighty-seven million, five hundred thirteen thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 11 22 44 88 149 298 596 619 1192 1238 1639 2476 3278 4952 6556 6701 6809 13112 13402 13618 26804 27236 53608 54472 73711 92231 147422 184462 294844 368924 589688 737848 998449 1014541 1996898 2029082 3993796 4058164 4147919 7987592 8116328 8295838 10982939 16591676 21965878 33183352 43931756 45627109 87863512 91254218 182508436 365016872 618039931 1236079862 2472159724 4944319448 6798439241 13596878482 27193756964 54387513928