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55746863800 = 2352278734319
BaseRepresentation
bin110011111010110001…
…011010001010111000
312022220002120002201021
4303322301122022320
51403132144120200
641335412432224
74012313344465
oct637261321270
9168802502637
1055746863800
1121707718971
12a979618674
135345568754
1429aba8866c
1516b417941a
hexcfac5a2b8

55746863800 has 24 divisors (see below), whose sum is σ = 129611458800. Its totient is φ = 22298745440.

The previous prime is 55746863791. The next prime is 55746863803. The reversal of 55746863800 is 836864755.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55746863803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139366960 + ... + 139367359.

It is an arithmetic number, because the mean of its divisors is an integer number (5400477450).

Almost surely, 255746863800 is an apocalyptic number.

55746863800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55746863800 is an abundant number, since it is smaller than the sum of its proper divisors (73864595000).

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

55746863800 is a wasteful number, since it uses less digits than its factorization.

55746863800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278734335 (or 278734326 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 55746863800 in words is "fifty-five billion, seven hundred forty-six million, eight hundred sixty-three thousand, eight hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 278734319 557468638 1114937276 1393671595 2229874552 2787343190 5574686380 6968357975 11149372760 13936715950 27873431900 55746863800