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55312732700 = 22523117842817
BaseRepresentation
bin110011100000111001…
…010101001000011100
312021202211122221210122
4303200321111020130
51401240024421300
641224343454112
73665462320241
oct634071251034
9167684587718
1055312732700
1121504660835
12a878157338
1352a6636a44
14296a15b5c8
15168aec2c85
hexce0e5521c

55312732700 has 36 divisors (see below), whose sum is σ = 123900528192. Its totient is φ = 21411379200.

The previous prime is 55312732627. The next prime is 55312732711. The reversal of 55312732700 is 723721355.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8918309 + ... + 8924508.

Almost surely, 255312732700 is an apocalyptic number.

55312732700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55312732700 is an abundant number, since it is smaller than the sum of its proper divisors (68587795492).

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

55312732700 is a wasteful number, since it uses less digits than its factorization.

55312732700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17842862 (or 17842855 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 35.

The spelling of 55312732700 in words is "fifty-five billion, three hundred twelve million, seven hundred thirty-two thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 31 50 62 100 124 155 310 620 775 1550 3100 17842817 35685634 71371268 89214085 178428170 356856340 446070425 553127327 892140850 1106254654 1784281700 2212509308 2765636635 5531273270 11062546540 13828183175 27656366350 55312732700