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54013920828 = 2237643022867
BaseRepresentation
bin110010010011011110…
…110000011000111100
312011102022201110212020
4302103132300120330
51341110030431303
640451425440140
73621341515560
oct622336603074
9164368643766
1054013920828
11209a84a519a
12a5751a0050
13512a5267ca
1428858696a0
151611e69a53
hexc937b063c

54013920828 has 24 divisors (see below), whose sum is σ = 144037122432. Its totient is φ = 15432548784.

The previous prime is 54013920809. The next prime is 54013920853. The reversal of 54013920828 is 82802931045.

54013920828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 54013920828.

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, 321511350 + ... + 321511517.

It is an arithmetic number, because the mean of its divisors is an integer number (6001546768).

Almost surely, 254013920828 is an apocalyptic number.

It is an amenable number.

54013920828 is an abundant number, since it is smaller than the sum of its proper divisors (90023201604).

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

54013920828 is a wasteful number, since it uses less digits than its factorization.

54013920828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643022881 (or 643022879 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 54013920828 in words is "fifty-four billion, thirteen million, nine hundred twenty thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 643022867 1286045734 1929068601 2572091468 3858137202 4501160069 7716274404 9002320138 13503480207 18004640276 27006960414 54013920828