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26300660436 = 22321933785357
BaseRepresentation
bin11000011111101001…
…000011101011010100
32111212221022222111200
4120133221003223110
5412330432113221
620025442232500
71620516632211
oct303751035324
974787288450
1026300660436
1110177045506
125120055730
132631b42c8b
1413b6ddab08
15a3de93426

26300660436 has 36 divisors (see below), whose sum is σ = 66826710132. Its totient is φ = 8721460224.

The previous prime is 26300660423. The next prime is 26300660459. The reversal of 26300660436 is 63406600362.

It can be written as a sum of positive squares in 2 ways, for example, as 12042867600 + 14257792836 = 109740^2 + 119406^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 26300660436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1885731 + ... + 1899626.

Almost surely, 226300660436 is an apocalyptic number.

It is an amenable number.

26300660436 is an abundant number, since it is smaller than the sum of its proper divisors (40526049696).

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

26300660436 is a wasteful number, since it uses less digits than its factorization.

26300660436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785560 (or 3785555 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The spelling of 26300660436 in words is "twenty-six billion, three hundred million, six hundred sixty thousand, four hundred thirty-six".