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55679816192 = 2971113261137
BaseRepresentation
bin110011110110110001…
…101001001000000000
312022201102101201200112
4303312301221020000
51403013013104232
641325015410452
74010540425430
oct636661511000
9168642351615
1055679816192
1121682894020
12a95b083a28
1353346c1a00
1429a2bd42c0
1516ad3334b2
hexcf6c69200

55679816192 has 480 divisors, whose sum is σ = 153768979584. Its totient is φ = 19552665600.

The previous prime is 55679816183. The next prime is 55679816207. The reversal of 55679816192 is 29161897655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 406421948 + ... + 406422084.

Almost surely, 255679816192 is an apocalyptic number.

55679816192 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55679816192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76884489792).

55679816192 is an abundant number, since it is smaller than the sum of its proper divisors (98089163392).

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

55679816192 is a wasteful number, since it uses less digits than its factorization.

55679816192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 231 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 59.

The spelling of 55679816192 in words is "fifty-five billion, six hundred seventy-nine million, eight hundred sixteen thousand, one hundred ninety-two".