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54480274221 = 3175623189977
BaseRepresentation
bin110010101111010001…
…110000001100101101
312012121211020200110010
4302233101300030231
51343033422233341
641010005203433
73636033455502
oct625721601455
9165554220403
1054480274221
112111777041a
12a685400579
1351a302ab69
1428cb7834a9
15163cd88716
hexcaf47032d

54480274221 has 16 divisors (see below), whose sum is σ = 76927411584. Its totient is φ = 34177442304.

The previous prime is 54480274183. The next prime is 54480274223. The reversal of 54480274221 is 12247208445.

54480274221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54480274221 - 26 = 54480274157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54480274221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54480274223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191785 + ... + 381761.

It is an arithmetic number, because the mean of its divisors is an integer number (4807963224).

Almost surely, 254480274221 is an apocalyptic number.

54480274221 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

54480274221 is a deficient number, since it is larger than the sum of its proper divisors (22447137363).

54480274221 is a wasteful number, since it uses less digits than its factorization.

54480274221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195620.

The product of its (nonzero) digits is 143360, while the sum is 39.

The spelling of 54480274221 in words is "fifty-four billion, four hundred eighty million, two hundred seventy-four thousand, two hundred twenty-one".

Divisors: 1 3 17 51 5623 16869 95591 189977 286773 569931 3229609 9688827 1068240671 3204722013 18160091407 54480274221