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55954430380 = 22519147248501
BaseRepresentation
bin110100000111001001…
…001101100110101100
312100102120010120112101
4310013021031212230
51404043313233010
641412145344444
74020413545042
oct640711154654
9170376116471
1055954430380
11218038a97a2
12aa17038124
135379571b04
1429cb47a392
1516c74ca73a
hexd0724d9ac

55954430380 has 24 divisors (see below), whose sum is σ = 123688741680. Its totient is φ = 21203784000.

The previous prime is 55954430369. The next prime is 55954430449. The reversal of 55954430380 is 8303445955.

It is a self number, because there is not a number n which added to its sum of digits gives 55954430380.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73623871 + ... + 73624630.

It is an arithmetic number, because the mean of its divisors is an integer number (5153697570).

Almost surely, 255954430380 is an apocalyptic number.

It is an amenable number.

55954430380 is an abundant number, since it is smaller than the sum of its proper divisors (67734311300).

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

55954430380 is a wasteful number, since it uses less digits than its factorization.

55954430380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147248529 (or 147248527 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 55954430380 in words is "fifty-five billion, nine hundred fifty-four million, four hundred thirty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 147248501 294497002 588994004 736242505 1472485010 2797721519 2944970020 5595443038 11190886076 13988607595 27977215190 55954430380