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55828431848 = 2372142419469
BaseRepresentation
bin110011111111101000…
…100100001111101000
312100002210001012001002
4303333220210033220
51403314034304343
641351445014132
74014323561300
oct637750441750
9170083035032
1055828431848
1121749770182
12a9a09b4348
135359427777
1429b883c600
1516bb3dc8b8
hexcffa243e8

55828431848 has 24 divisors (see below), whose sum is σ = 121768646850. Its totient is φ = 23926470624.

The previous prime is 55828431809. The next prime is 55828431863. The reversal of 55828431848 is 84813482855.

It can be written as a sum of positive squares in only one way, i.e., 51711669604 + 4116762244 = 227402^2 + 64162^2 .

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 55828431793 and 55828431802.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71209343 + ... + 71210126.

Almost surely, 255828431848 is an apocalyptic number.

It is an amenable number.

55828431848 is an abundant number, since it is smaller than the sum of its proper divisors (65940215002).

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

55828431848 is a wasteful number, since it uses less digits than its factorization.

55828431848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142419489 (or 142419478 counting only the distinct ones).

The product of its digits is 9830400, while the sum is 56.

The spelling of 55828431848 in words is "fifty-five billion, eight hundred twenty-eight million, four hundred thirty-one thousand, eight hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 142419469 284838938 569677876 996936283 1139355752 1993872566 3987745132 6978553981 7975490264 13957107962 27914215924 55828431848