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68970911 = 731516257
BaseRepresentation
bin1000001110001…
…10100110011111
311210210002022012
410013012212133
5120124032121
610502141435
71465146242
oct407064637
9153702265
1068970911
1135a28959
121b12187b
131139b2b9
149235259
1560c5c5b
hex41c699f

68970911 has 8 divisors (see below), whose sum is σ = 70389984. Its totient is φ = 67564800.

The previous prime is 68970883. The next prime is 68970917. The reversal of 68970911 is 11907986.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68970911 - 218 = 68708767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68970917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7895 + ... + 14151.

It is an arithmetic number, because the mean of its divisors is an integer number (8798748).

Almost surely, 268970911 is an apocalyptic number.

68970911 is a deficient number, since it is larger than the sum of its proper divisors (1419073).

68970911 is a wasteful number, since it uses less digits than its factorization.

68970911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6481.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 68970911 is about 8304.8727262975. The cubic root of 68970911 is about 410.0989469695.

The spelling of 68970911 in words is "sixty-eight million, nine hundred seventy thousand, nine hundred eleven".

Divisors: 1 73 151 6257 11023 456761 944807 68970911