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68254772750 = 253307889313
BaseRepresentation
bin111111100100010011…
…010010111000001110
320112011210101201011022
4333210103102320032
52104241210212000
651204504354142
74634262665363
oct774423227016
9215153351138
1068254772750
1126a46048aaa
121128a475952
1365899c41c8
143436d1a46a
151b972c6585
hexfe44d2e0e

68254772750 has 32 divisors (see below), whose sum is σ = 128189277216. Its totient is φ = 27212947200.

The previous prime is 68254772749. The next prime is 68254772767. The reversal of 68254772750 is 5727745286.

It is a junction number, because it is equal to n+sod(n) for n = 68254772692 and 68254772701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367907 + ... + 521406.

It is an arithmetic number, because the mean of its divisors is an integer number (4005914913).

Almost surely, 268254772750 is an apocalyptic number.

68254772750 is a deficient number, since it is larger than the sum of its proper divisors (59934504466).

68254772750 is a wasteful number, since it uses less digits than its factorization.

68254772750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889637 (or 889627 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 53.

The spelling of 68254772750 in words is "sixty-eight billion, two hundred fifty-four million, seven hundred seventy-two thousand, seven hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 307 614 1535 3070 7675 15350 38375 76750 889313 1778626 4446565 8893130 22232825 44465650 111164125 222328250 273019091 546038182 1365095455 2730190910 6825477275 13650954550 34127386375 68254772750