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68785732 = 22235314107
BaseRepresentation
bin1000001100110…
…01011001000100
311210102200021201
410012121121010
5120102120412
610454152244
71463445331
oct406313104
9153380251
1068785732
1135911814
121b052684
1311334c22
1491c7988
15608ae57
hex4199644

68785732 has 24 divisors (see below), whose sum is σ = 127987776. Its totient is φ = 32274528.

The previous prime is 68785727. The next prime is 68785733. The reversal of 68785732 is 23758786.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (68785733) 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, 2178 + ... + 11929.

It is an arithmetic number, because the mean of its divisors is an integer number (5332824).

Almost surely, 268785732 is an apocalyptic number.

It is an amenable number.

68785732 is a deficient number, since it is larger than the sum of its proper divisors (59202044).

68785732 is a wasteful number, since it uses less digits than its factorization.

68785732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14187 (or 14185 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 68785732 is about 8293.7164166615. The cubic root of 68785732 is about 409.7315950995.

The spelling of 68785732 in words is "sixty-eight million, seven hundred eighty-five thousand, seven hundred thirty-two".

Divisors: 1 2 4 23 46 53 92 106 212 1219 2438 4876 14107 28214 56428 324461 648922 747671 1297844 1495342 2990684 17196433 34392866 68785732