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68615848 = 2371225283
BaseRepresentation
bin1000001011011…
…11111010101000
311210010001020201
410011233322220
5120031201343
610450401544
71462140130
oct405577250
9153101221
1068615848
1135806114
121ab902b4
13112a57c2
149181ac0
15605594d
hex416fea8

68615848 has 16 divisors (see below), whose sum is σ = 147034080. Its totient is φ = 29406768.

The previous prime is 68615809. The next prime is 68615857. The reversal of 68615848 is 84851686.

It is a junction number, because it is equal to n+sod(n) for n = 68615798 and 68615807.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612586 + ... + 612697.

It is an arithmetic number, because the mean of its divisors is an integer number (9189630).

Almost surely, 268615848 is an apocalyptic number.

It is an amenable number.

68615848 is an abundant number, since it is smaller than the sum of its proper divisors (78418232).

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

68615848 is a wasteful number, since it uses less digits than its factorization.

68615848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225296 (or 1225292 counting only the distinct ones).

The product of its digits is 368640, while the sum is 46.

The square root of 68615848 is about 8283.4683557070. The cubic root of 68615848 is about 409.3940046186.

It can be divided in two parts, 686158 and 48, that added together give a triangular number (686206 = T1171).

The spelling of 68615848 in words is "sixty-eight million, six hundred fifteen thousand, eight hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 56 1225283 2450566 4901132 8576981 9802264 17153962 34307924 68615848