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68959570 = 256895957
BaseRepresentation
bin1000001110000…
…11110101010010
311210202111202011
410013003311102
5120123201240
610502013134
71465101211
oct407036522
9153674664
1068959570
1135a20389
121b1171aa
13113960a4
149231078
1560c26ea
hex41c3d52

68959570 has 8 divisors (see below), whose sum is σ = 124127244. Its totient is φ = 27583824.

The previous prime is 68959567. The next prime is 68959643. The reversal of 68959570 is 7595986.

It can be written as a sum of positive squares in 2 ways, for example, as 62204769 + 6754801 = 7887^2 + 2599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3447969 + ... + 3447988.

Almost surely, 268959570 is an apocalyptic number.

68959570 is a deficient number, since it is larger than the sum of its proper divisors (55167674).

68959570 is a wasteful number, since it uses less digits than its factorization.

68959570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6895964.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 68959570 is about 8304.1899063063. The cubic root of 68959570 is about 410.0764679899.

The spelling of 68959570 in words is "sixty-eight million, nine hundred fifty-nine thousand, five hundred seventy".

Divisors: 1 2 5 10 6895957 13791914 34479785 68959570