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67424793954 = 2371984492223
BaseRepresentation
bin111110110010110101…
…001011010101100010
320110000221122102021220
4332302311023111202
52101041221401304
650550255155510
74604564202210
oct766265132542
9213027572256
1067424793954
112665a5a1711
1211098515b96
136486a75bab
1433989c9cb0
151b494cbad9
hexfb2d4b562

67424793954 has 32 divisors (see below), whose sum is σ = 162225070080. Its totient is φ = 18250319952.

The previous prime is 67424793937. The next prime is 67424793977. The reversal of 67424793954 is 45939742476.

It is a super-2 number, since 2×674247939542 (a number of 22 digits) contains 22 as substring.

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, 42245314 + ... + 42246909.

It is an arithmetic number, because the mean of its divisors is an integer number (5069533440).

Almost surely, 267424793954 is an apocalyptic number.

67424793954 is an abundant number, since it is smaller than the sum of its proper divisors (94800276126).

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

67424793954 is a wasteful number, since it uses less digits than its factorization.

67424793954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84492254.

The product of its digits is 45722880, while the sum is 60.

The spelling of 67424793954 in words is "sixty-seven billion, four hundred twenty-four million, seven hundred ninety-three thousand, nine hundred fifty-four".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 84492223 168984446 253476669 506953338 591445561 1182891122 1605352237 1774336683 3210704474 3548673366 4816056711 9632113422 11237465659 22474931318 33712396977 67424793954