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68953967 = 292519473
BaseRepresentation
bin1000001110000…
…10011101101111
311210202020001122
410013002131233
5120123011332
610501531155
71465045655
oct407023557
9153666048
1068953967
1135a17155
121b113abb
1311393684
14922cdd5
1560c0c12
hex41c276f

68953967 has 8 divisors (see below), whose sum is σ = 71623440. Its totient is φ = 66304000.

The previous prime is 68953957. The next prime is 68953991. The reversal of 68953967 is 76935986.

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 68953967 - 212 = 68949871 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 (68953957) 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, 2543 + ... + 12015.

It is an arithmetic number, because the mean of its divisors is an integer number (8952930).

Almost surely, 268953967 is an apocalyptic number.

68953967 is a deficient number, since it is larger than the sum of its proper divisors (2669473).

68953967 is a wasteful number, since it uses less digits than its factorization.

68953967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9753.

The product of its digits is 2449440, while the sum is 53.

The square root of 68953967 is about 8303.8525396348. The cubic root of 68953967 is about 410.0653613822.

The spelling of 68953967 in words is "sixty-eight million, nine hundred fifty-three thousand, nine hundred sixty-seven".

Divisors: 1 29 251 7279 9473 274717 2377723 68953967