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68626344100 = 22527915157529
BaseRepresentation
bin111111111010011100…
…101110100010100100
320120010200120111020011
4333322130232202210
52111021321002400
651305420420004
74646424204646
oct777234564244
9216120514204
1068626344100
1127116867066
12113729a7604
136618990b02
143470400896
151bb9c218ba
hexffa72e8a4

68626344100 has 72 divisors (see below), whose sum is σ = 151805561600. Its totient is φ = 26923104000.

The previous prime is 68626344043. The next prime is 68626344103. The reversal of 68626344100 is 144362686.

It is not an unprimeable number, because it can be changed into a prime (68626344103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1164136 + ... + 1221664.

Almost surely, 268626344100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68626344100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75902780800).

68626344100 is an abundant number, since it is smaller than the sum of its proper divisors (83179217500).

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

68626344100 is a wasteful number, since it uses less digits than its factorization.

68626344100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57773 (or 57766 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 68626344100 in words is "sixty-eight billion, six hundred twenty-six million, three hundred forty-four thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 79 100 151 158 302 316 395 604 755 790 1510 1580 1975 3020 3775 3950 7550 7900 11929 15100 23858 47716 57529 59645 115058 119290 230116 238580 287645 298225 575290 596450 1150580 1192900 1438225 2876450 4544791 5752900 8686879 9089582 17373758 18179164 22723955 34747516 43434395 45447910 86868790 90895820 113619775 173737580 217171975 227239550 434343950 454479100 686263441 868687900 1372526882 2745053764 3431317205 6862634410 13725268820 17156586025 34313172050 68626344100