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26230277612 = 22721123415197
BaseRepresentation
bin11000011011011100…
…100100010111101100
32111201000220011102102
4120123130210113230
5412204422340422
620014445514232
71616003452400
oct303334442754
974630804372
1026230277612
1110140342890
125100572978
13262039c136
1413ab919100
15a37bde192
hex61b7245ec

26230277612 has 72 divisors (see below), whose sum is σ = 58287752208. Its totient is φ = 10213257600.

The previous prime is 26230277581. The next prime is 26230277617. The reversal of 26230277612 is 21677203262.

It is not an unprimeable number, because it can be changed into a prime (26230277617) 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, 5044598 + ... + 5049794.

It is an arithmetic number, because the mean of its divisors is an integer number (809552114).

Almost surely, 226230277612 is an apocalyptic number.

26230277612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26230277612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29143876104).

26230277612 is an abundant number, since it is smaller than the sum of its proper divisors (32057474596).

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

26230277612 is a wasteful number, since it uses less digits than its factorization.

26230277612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7567 (or 7558 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 26230277612 in words is "twenty-six billion, two hundred thirty million, two hundred seventy-seven thousand, six hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 2341 4682 5197 9364 10394 16387 20788 25751 32774 36379 51502 57167 65548 72758 103004 114334 114709 145516 180257 228668 229418 254653 360514 400169 458836 509306 721028 800338 1018612 1261799 1600676 2523598 2801183 5047196 5602366 11204732 12166177 24332354 48664708 85163239 133827947 170326478 267655894 340652956 535311788 596142673 936795629 1192285346 1873591258 2384570692 3747182516 6557569403 13115138806 26230277612