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68247074008 = 2343985920123
BaseRepresentation
bin111111100011110101…
…111011010011011000
320112011020220120110201
4333203311323103120
52104232222332013
651204031351544
74634140362151
oct774365732330
9215136816421
1068247074008
1126a4176a903
12112879825b4
136588229c39
143435cb4928
151b967a53dd
hexfe3d7b4d8

68247074008 has 32 divisors (see below), whose sum is σ = 130958942400. Its totient is φ = 33324929568.

The previous prime is 68247073987. The next prime is 68247074009. The reversal of 68247074008 is 80047074286.

It is a super-2 number, since 2×682470740082 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68247074009) 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 7 ways as a sum of consecutive naturals, for example, 3381435 + ... + 3401557.

It is an arithmetic number, because the mean of its divisors is an integer number (4092466950).

Almost surely, 268247074008 is an apocalyptic number.

It is an amenable number.

68247074008 is a deficient number, since it is larger than the sum of its proper divisors (62711868392).

68247074008 is a wasteful number, since it uses less digits than its factorization.

68247074008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30031 (or 30027 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 46.

The spelling of 68247074008 in words is "sixty-eight billion, two hundred forty-seven million, seventy-four thousand, eight".

Divisors: 1 2 4 8 43 86 172 344 9859 19718 20123 39436 40246 78872 80492 160984 423937 847874 865289 1695748 1730578 3391496 3461156 6922312 198392657 396785314 793570628 1587141256 8530884251 17061768502 34123537004 68247074008