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68347748574 = 23274671161547
BaseRepresentation
bin111111101001110101…
…111110000011011110
320112102021100101000100
4333221311332003132
52104434010423244
651222025241530
74636502164050
oct775165760336
9215367311010
1068347748574
1126a93582126
12112b56332a6
1365a30487a1
1434453dd8d0
151ba053eb69
hexfe9d7e0de

68347748574 has 48 divisors (see below), whose sum is σ = 169604592768. Its totient is φ = 19486095696.

The previous prime is 68347748531. The next prime is 68347748587. The reversal of 68347748574 is 47584774386.

68347748574 is a `hidden beast` number, since 6 + 83 + 4 + 7 + 7 + 485 + 74 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 521932 + ... + 639615.

It is an arithmetic number, because the mean of its divisors is an integer number (3533429016).

Almost surely, 268347748574 is an apocalyptic number.

68347748574 is an abundant number, since it is smaller than the sum of its proper divisors (101256844194).

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

68347748574 is a wasteful number, since it uses less digits than its factorization.

68347748574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162029 (or 1162026 counting only the distinct ones).

The product of its digits is 126443520, while the sum is 63.

The spelling of 68347748574 in words is "sixty-eight billion, three hundred forty-seven million, seven hundred forty-eight thousand, five hundred seventy-four".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 467 934 1401 2802 3269 4203 6538 8406 9807 19614 29421 58842 1161547 2323094 3484641 6969282 8130829 10453923 16261658 20907846 24392487 48784974 73177461 146354922 542442449 1084884898 1627327347 3254654694 3797097143 4881982041 7594194286 9763964082 11391291429 22782582858 34173874287 68347748574