Search a number
-
+
68956896 = 25317293147
BaseRepresentation
bin1000001110000…
…11001011100000
311210202101002010
410013003023200
5120123110041
610501552520
71465060341
oct407031340
9153671063
1068956896
1135a19378
121b115740
1311394ac8
1492300c8
1560c1a16
hex41c32e0

68956896 has 192 divisors, whose sum is σ = 209018880. Its totient is φ = 19783680.

The previous prime is 68956889. The next prime is 68956919. The reversal of 68956896 is 69865986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1467145 + ... + 1467191.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 268956896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68956896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104509440).

68956896 is an abundant number, since it is smaller than the sum of its proper divisors (140061984).

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

68956896 is a wasteful number, since it uses less digits than its factorization.

68956896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 129 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 57.

The square root of 68956896 is about 8304.0289016838. The cubic root of 68956896 is about 410.0711674993.

The spelling of 68956896 in words is "sixty-eight million, nine hundred fifty-six thousand, eight hundred ninety-six".