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56968918890 = 23513146074151
BaseRepresentation
bin110101000011100111…
…001011011101101010
312110001021001221010220
4311003213023131222
51413133020401030
642100545350510
74054512551352
oct650347133552
9173037057126
1056968918890
1122184518a54
12b05a938436
1354ab7b2880
142a860b9b62
1517365bea10
hexd439cb76a

56968918890 has 32 divisors (see below), whose sum is σ = 147242745216. Its totient is φ = 14023118400.

The previous prime is 56968918889. The next prime is 56968918901. The reversal of 56968918890 is 9881986965.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73036686 + ... + 73037465.

It is an arithmetic number, because the mean of its divisors is an integer number (4601335788).

Almost surely, 256968918890 is an apocalyptic number.

56968918890 is an abundant number, since it is smaller than the sum of its proper divisors (90273826326).

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

56968918890 is a wasteful number, since it uses less digits than its factorization.

56968918890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146074174.

The product of its (nonzero) digits is 67184640, while the sum is 69.

The spelling of 56968918890 in words is "fifty-six billion, nine hundred sixty-eight million, nine hundred eighteen thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 146074151 292148302 438222453 730370755 876444906 1460741510 1898963963 2191112265 3797927926 4382224530 5696891889 9494819815 11393783778 18989639630 28484459445 56968918890