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68112748 = 22114213677
BaseRepresentation
bin1000000111101…
…01000101101100
311202011111010101
410003311011230
5114414101443
610431520444
71454643304
oct403650554
9152144111
1068112748
11354a2130
121a989124
131115a802
149090604
155ea684d
hex40f516c

68112748 has 24 divisors (see below), whose sum is σ = 130377744. Its totient is φ = 30878400.

The previous prime is 68112703. The next prime is 68112757. The reversal of 68112748 is 84721186.

It is a super-2 number, since 2×681127482 = 9278692880223008, which contains 22 as substring.

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, 16686 + ... + 20362.

It is an arithmetic number, because the mean of its divisors is an integer number (5432406).

Almost surely, 268112748 is an apocalyptic number.

It is an amenable number.

68112748 is a deficient number, since it is larger than the sum of its proper divisors (62264996).

68112748 is a wasteful number, since it uses less digits than its factorization.

68112748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4113 (or 4111 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 68112748 is about 8253.0447714768. The cubic root of 68112748 is about 408.3909731026.

It can be divided in two parts, 6811 and 2748, that added together give a palindrome (9559).

The spelling of 68112748 in words is "sixty-eight million, one hundred twelve thousand, seven hundred forty-eight".

Divisors: 1 2 4 11 22 44 421 842 1684 3677 4631 7354 9262 14708 18524 40447 80894 161788 1548017 3096034 6192068 17028187 34056374 68112748