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55310450450 = 2521901581909
BaseRepresentation
bin110011100000110000…
…100111111100010010
312021202200101000010212
4303200300213330102
51401233433403300
641224222524122
73665434033403
oct634060477422
9167680330125
1055310450450
1121503342082
12a877436642
1352a6017cb8
142969b259aa
15168abc1935
hexce0c27f12

55310450450 has 24 divisors (see below), whose sum is σ = 102931732260. Its totient is φ = 22112504000.

The previous prime is 55310450431. The next prime is 55310450467. The reversal of 55310450450 is 5405401355.

It can be written as a sum of positive squares in 6 ways, for example, as 7288549129 + 48021901321 = 85373^2 + 219139^2 .

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 11 ways as a sum of consecutive naturals, for example, 195905 + ... + 386004.

Almost surely, 255310450450 is an apocalyptic number.

55310450450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55310450450 is a deficient number, since it is larger than the sum of its proper divisors (47621281810).

55310450450 is a wasteful number, since it uses less digits than its factorization.

55310450450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583822 (or 583817 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 55310450450 in words is "fifty-five billion, three hundred ten million, four hundred fifty thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 1901 3802 9505 19010 47525 95050 581909 1163818 2909545 5819090 14547725 29095450 1106209009 2212418018 5531045045 11062090090 27655225225 55310450450