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68490059662 = 2177383193057
BaseRepresentation
bin111111110010010100…
…110101111110001110
320112210012010112010101
4333302110311332032
52110231423402122
651244111401314
74643150621143
oct776224657616
9215705115111
1068490059662
11270569425a2
121133522323a
1365c6684a2b
14345a2863ca
151bacca1027
hexff2535f8e

68490059662 has 8 divisors (see below), whose sum is σ = 102736200816. Its totient is φ = 34244659392.

The previous prime is 68490059657. The next prime is 68490059669. The reversal of 68490059662 is 26695009486.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68490059669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258238 + ... + 451294.

It is an arithmetic number, because the mean of its divisors is an integer number (12842025102).

Almost surely, 268490059662 is an apocalyptic number.

68490059662 is a deficient number, since it is larger than the sum of its proper divisors (34246141154).

68490059662 is a wasteful number, since it uses less digits than its factorization.

68490059662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370442.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 68490059662 in words is "sixty-eight billion, four hundred ninety million, fifty-nine thousand, six hundred sixty-two".

Divisors: 1 2 177383 193057 354766 386114 34245029831 68490059662