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68495218248 = 2332853967427
BaseRepresentation
bin111111110010101000…
…100001011001001000
320112210112211121101010
4333302220201121020
52110234233440443
651244414123520
74643242514562
oct776250413110
9215715747333
1068495218248
1127059846296
1211336ab05a0
1365c776ca52
14345ac2a332
151bad46e733
hexff2a21648

68495218248 has 16 divisors (see below), whose sum is σ = 171238045680. Its totient is φ = 22831739408.

The previous prime is 68495218213. The next prime is 68495218249. The reversal of 68495218248 is 84281259486.

It is not an unprimeable number, because it can be changed into a prime (68495218249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426983690 + ... + 1426983737.

It is an arithmetic number, because the mean of its divisors is an integer number (10702377855).

Almost surely, 268495218248 is an apocalyptic number.

It is an amenable number.

68495218248 is an abundant number, since it is smaller than the sum of its proper divisors (102742827432).

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

68495218248 is a wasteful number, since it uses less digits than its factorization.

68495218248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853967436 (or 2853967432 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 57.

The spelling of 68495218248 in words is "sixty-eight billion, four hundred ninety-five million, two hundred eighteen thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 2853967427 5707934854 8561902281 11415869708 17123804562 22831739416 34247609124 68495218248