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68054445054 = 2348914513253
BaseRepresentation
bin111111011000010111…
…000110101111111110
320111122211110000020000
4333120113012233332
52103333414220204
651132550535130
74626311144541
oct773027065776
9214584400200
1068054445054
1126952a61922
12112333674a6
1365573539cb
143418490858
151b84905039
hexfd85c6bfe

68054445054 has 80 divisors (see below), whose sum is σ = 154359477360. Its totient is φ = 22407580800.

The previous prime is 68054445023. The next prime is 68054445073. The reversal of 68054445054 is 45054445086.

It is a happy number.

68054445054 is a `hidden beast` number, since 6 + 8 + 0 + 544 + 4 + 50 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20918892 + ... + 20922144.

It is an arithmetic number, because the mean of its divisors is an integer number (1929493467).

Almost surely, 268054445054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68054445054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77179738680).

68054445054 is an abundant number, since it is smaller than the sum of its proper divisors (86305032306).

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

68054445054 is a wasteful number, since it uses less digits than its factorization.

68054445054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4807 (or 4798 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 45.

The spelling of 68054445054 in words is "sixty-eight billion, fifty-four million, four hundred forty-five thousand, fifty-four".

Divisors: 1 2 3 6 9 18 27 54 81 89 162 178 267 534 801 1451 1602 2403 2902 3253 4353 4806 6506 7209 8706 9759 13059 14418 19518 26118 29277 39177 58554 78354 87831 117531 129139 175662 235062 258278 263493 289517 387417 526986 579034 774834 868551 1162251 1737102 2324502 2605653 3486753 4720103 5211306 6973506 7816959 9440206 10460259 14160309 15633918 20920518 23450877 28320618 42480927 46901754 84961854 127442781 254885562 382328343 420089167 764656686 840178334 1260267501 2520535002 3780802503 7561605006 11342407509 22684815018 34027222527 68054445054