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51600068700 = 22352172000229
BaseRepresentation
bin110000000011100110…
…101001000001011100
311221012002122002020120
4300003212221001130
51321134104144300
635412120314540
73504461230035
oct600346510134
9157162562216
1051600068700
111a979991384
12a000912a50
134b343cab3b
1426d7041a8c
1515200a93a0
hexc039a905c

51600068700 has 36 divisors (see below), whose sum is σ = 149296199640. Its totient is φ = 13760018240.

The previous prime is 51600068699. The next prime is 51600068711. The reversal of 51600068700 is 786000615.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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, 85999815 + ... + 86000414.

Almost surely, 251600068700 is an apocalyptic number.

51600068700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51600068700 is an abundant number, since it is smaller than the sum of its proper divisors (97696130940).

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

51600068700 is a wasteful number, since it uses less digits than its factorization.

51600068700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172000246 (or 172000239 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 51600068700 in words is "fifty-one billion, six hundred million, sixty-eight thousand, seven hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 172000229 344000458 516000687 688000916 860001145 1032001374 1720002290 2064002748 2580003435 3440004580 4300005725 5160006870 8600011450 10320013740 12900017175 17200022900 25800034350 51600068700