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68412325288 = 2397181487073
BaseRepresentation
bin111111101101101100…
…010011110110101000
320112120202212012121111
4333231230103312220
52110102023402123
651232253320104
74641215112256
oct775554236650
9215522765544
1068412325288
1127016a7960a
1211313196034
1365b3538968
14344dc0d5d6
151ba604890d
hexfedb13da8

68412325288 has 32 divisors (see below), whose sum is σ = 130311777960. Its totient is φ = 33666416640.

The previous prime is 68412325277. The next prime is 68412325309. The reversal of 68412325288 is 88252321486.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25039264644 + 43373060644 = 158238^2 + 208262^2 .

It is a super-2 number, since 2×684123252882 (a number of 22 digits) 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, 103081 + ... + 383992.

Almost surely, 268412325288 is an apocalyptic number.

It is an amenable number.

68412325288 is a deficient number, since it is larger than the sum of its proper divisors (61899452672).

68412325288 is a wasteful number, since it uses less digits than its factorization.

68412325288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487357 (or 487353 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 49.

The spelling of 68412325288 in words is "sixty-eight billion, four hundred twelve million, three hundred twenty-five thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 97 181 194 362 388 724 776 1448 17557 35114 70228 140456 487073 974146 1948292 3896584 47246081 88160213 94492162 176320426 188984324 352640852 377968648 705281704 8551540661 17103081322 34206162644 68412325288