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68486845 = 571999833
BaseRepresentation
bin1000001010100…
…00011010111101
311202212111021211
410011100122331
5120013034340
610443524421
71461062050
oct405203275
9152774254
1068486845
11357281a9
121ab29711
131125bb7b
14914aa97
15602c5ea
hex41506bd

68486845 has 16 divisors (see below), whose sum is σ = 94406400. Its totient is φ = 46721664.

The previous prime is 68486839. The next prime is 68486857. The reversal of 68486845 is 54868486.

It is a cyclic number.

It is not a de Polignac number, because 68486845 - 23 = 68486837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2049 + ... + 11881.

It is an arithmetic number, because the mean of its divisors is an integer number (5900400).

Almost surely, 268486845 is an apocalyptic number.

It is an amenable number.

68486845 is a deficient number, since it is larger than the sum of its proper divisors (25919555).

68486845 is a wasteful number, since it uses less digits than its factorization.

68486845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10044.

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

The square root of 68486845 is about 8275.6779178506. The cubic root of 68486845 is about 409.1372797343.

It can be divided in two parts, 6848684 and 5, that added together give a square (6848689 = 26172).

The spelling of 68486845 in words is "sixty-eight million, four hundred eighty-six thousand, eight hundred forty-five".

Divisors: 1 5 7 35 199 995 1393 6965 9833 49165 68831 344155 1956767 9783835 13697369 68486845