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68030392 = 238503799
BaseRepresentation
bin1000000111000…
…00111110111000
311202000022011011
410003200332320
5114403433032
610430043304
71454151223
oct403407670
9152008134
1068030392
1135446271
121a949534
131112c191
14906c5ba
155e8c247
hex40e0fb8

68030392 has 8 divisors (see below), whose sum is σ = 127557000. Its totient is φ = 34015192.

The previous prime is 68030371. The next prime is 68030401. The reversal of 68030392 is 29303086.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4251892 + ... + 4251907.

It is an arithmetic number, because the mean of its divisors is an integer number (15944625).

Almost surely, 268030392 is an apocalyptic number.

It is an amenable number.

68030392 is a deficient number, since it is larger than the sum of its proper divisors (59526608).

68030392 is a wasteful number, since it uses less digits than its factorization.

68030392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8503805 (or 8503801 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 68030392 is about 8248.0538310561. The cubic root of 68030392 is about 408.2263097925.

The spelling of 68030392 in words is "sixty-eight million, thirty thousand, three hundred ninety-two".

Divisors: 1 2 4 8 8503799 17007598 34015196 68030392