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68250792 = 23337151509
BaseRepresentation
bin1000001000101…
…10110010101000
311202102111111010
410010112302220
5114433011132
610434503520
71456056621
oct404266250
9152374433
1068250792
1135586915
121aa34ba0
13111a85ac
1490c8a48
155ed26cc
hex4116ca8

68250792 has 64 divisors (see below), whose sum is σ = 176745600. Its totient is φ = 21945600.

The previous prime is 68250781. The next prime is 68250799. The reversal of 68250792 is 29705286.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68250792.

It is not an unprimeable number, because it can be changed into a prime (68250799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133834 + ... + 134342.

It is an arithmetic number, because the mean of its divisors is an integer number (2761650).

Almost surely, 268250792 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 68250792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88372800).

68250792 is an abundant number, since it is smaller than the sum of its proper divisors (108494808).

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

68250792 is a wasteful number, since it uses less digits than its factorization.

68250792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 702 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 68250792 is about 8261.4037548107. The cubic root of 68250792 is about 408.6666820425. Note that the first 4 decimals are identical.

The spelling of 68250792 in words is "sixty-eight million, two hundred fifty thousand, seven hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 37 74 111 148 151 222 296 302 444 453 509 604 888 906 1018 1208 1527 1812 2036 3054 3624 4072 5587 6108 11174 12216 16761 18833 22348 33522 37666 44696 56499 67044 75332 76859 112998 134088 150664 153718 225996 230577 307436 451992 461154 614872 922308 1844616 2843783 5687566 8531349 11375132 17062698 22750264 34125396 68250792