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26756117380 = 2258316118143
BaseRepresentation
bin11000111010110010…
…011111001110000100
32120001200100120222101
4120322302133032010
5414244031224010
620142552241444
71635020150056
oct307262371604
976050316871
1026756117380
1110390149003
1252286a0284
1326a5300725
14141b6b98d6
15a68e5d73a
hex63ac9f384

26756117380 has 24 divisors (see below), whose sum is σ = 56864812032. Its totient is φ = 10573501152.

The previous prime is 26756117299. The next prime is 26756117387. The reversal of 26756117380 is 8371165762.

It is a self number, because there is not a number n which added to its sum of digits gives 26756117380.

It is not an unprimeable number, because it can be changed into a prime (26756117387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8057412 + ... + 8060731.

It is an arithmetic number, because the mean of its divisors is an integer number (2369367168).

Almost surely, 226756117380 is an apocalyptic number.

26756117380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26756117380 is an abundant number, since it is smaller than the sum of its proper divisors (30108694652).

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

26756117380 is a wasteful number, since it uses less digits than its factorization.

26756117380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16118235 (or 16118233 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 26756117380 in words is "twenty-six billion, seven hundred fifty-six million, one hundred seventeen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1660 16118143 32236286 64472572 80590715 161181430 322362860 1337805869 2675611738 5351223476 6689029345 13378058690 26756117380