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68472724 = 221071571019
BaseRepresentation
bin1000001010011…
…00111110010100
311202211202220211
410011030332110
5120012111344
610443335204
71461002635
oct405147624
9152752824
1068472724
1135718631
121ab21504
1311255608
14914588c
156028334
hex414cf94

68472724 has 24 divisors (see below), whose sum is σ = 121836960. Its totient is φ = 33667296.

The previous prime is 68472673. The next prime is 68472731. The reversal of 68472724 is 42727486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66687 + ... + 67705.

It is an arithmetic number, because the mean of its divisors is an integer number (5076540).

Almost surely, 268472724 is an apocalyptic number.

It is an amenable number.

68472724 is a deficient number, since it is larger than the sum of its proper divisors (53364236).

68472724 is a wasteful number, since it uses less digits than its factorization.

68472724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287 (or 1285 counting only the distinct ones).

The product of its digits is 150528, while the sum is 40.

The square root of 68472724 is about 8274.8247111344. The cubic root of 68472724 is about 409.1091583988.

It can be divided in two parts, 68472 and 724, that added together give a palindrome (69196).

The spelling of 68472724 in words is "sixty-eight million, four hundred seventy-two thousand, seven hundred twenty-four".

Divisors: 1 2 4 107 157 214 314 428 628 1019 2038 4076 16799 33598 67196 109033 159983 218066 319966 436132 639932 17118181 34236362 68472724