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26312604420 = 22351725796671
BaseRepresentation
bin11000100000010110…
…100111101100000100
32111220202210210120110
4120200112213230010
5412342011320140
620030550233020
71621023306264
oct304026475404
974822723513
1026312604420
1110182863173
125124055770
13263446561b
1413b88297a4
15a40052380
hex6205a7b04

26312604420 has 48 divisors (see below), whose sum is σ = 78009136128. Its totient is φ = 6603947520.

The previous prime is 26312604407. The next prime is 26312604511. The reversal of 26312604420 is 2440621362.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 12897316 + ... + 12899355.

It is an arithmetic number, because the mean of its divisors is an integer number (1625190336).

Almost surely, 226312604420 is an apocalyptic number.

26312604420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26312604420 is an abundant number, since it is smaller than the sum of its proper divisors (51696531708).

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

26312604420 is a wasteful number, since it uses less digits than its factorization.

26312604420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25796700 (or 25796698 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 26312604420 in words is "twenty-six billion, three hundred twelve million, six hundred four thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 25796671 51593342 77390013 103186684 128983355 154780026 257966710 309560052 386950065 438543407 515933420 773900130 877086814 1315630221 1547800260 1754173628 2192717035 2631260442 4385434070 5262520884 6578151105 8770868140 13156302210 26312604420