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6940975680 = 263253796359
BaseRepresentation
bin1100111011011011…
…01110001001000000
3122220201200002122100
412131231232021000
5103203342210210
63104425110400
7334001214462
oct63555561100
918821602570
106940975680
112a41aaa841
121418628400
1386800b102
1449bb94132
152a955a5c0
hex19db6e240

6940975680 has 168 divisors, whose sum is σ = 23940820800. Its totient is φ = 1845752832.

The previous prime is 6940975597. The next prime is 6940975693. The reversal of 6940975680 is 865790496.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1088341 + ... + 1094699.

Almost surely, 26940975680 is an apocalyptic number.

6940975680 is a gapful number since it is divisible by the number (60) 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 6940975680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11970410400).

6940975680 is an abundant number, since it is smaller than the sum of its proper divisors (16999845120).

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

6940975680 is a wasteful number, since it uses less digits than its factorization.

6940975680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761 (or 6748 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 6940975680 is about 83312.5181470348. The cubic root of 6940975680 is about 1907.5393584919.

The spelling of 6940975680 in words is "six billion, nine hundred forty million, nine hundred seventy-five thousand, six hundred eighty".