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26040134460 = 22351069405989
BaseRepresentation
bin11000010000000111…
…001110101100111100
32111012210002220001110
4120100013032230330
5411312233300320
615543534242020
71611204330234
oct302007165474
974183086043
1026040134460
1110052a8248a
125068956310
1325bcb864b2
141390580cc4
15a261805e0
hex6101ceb3c

26040134460 has 48 divisors (see below), whose sum is σ = 72980762400. Its totient is φ = 6937522944.

The previous prime is 26040134443. The next prime is 26040134473. The reversal of 26040134460 is 6443104062.

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

It is a congruent number.

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, 138855 + ... + 267134.

It is an arithmetic number, because the mean of its divisors is an integer number (1520432550).

Almost surely, 226040134460 is an apocalyptic number.

26040134460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26040134460 is an abundant number, since it is smaller than the sum of its proper divisors (46940627940).

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

26040134460 is a wasteful number, since it uses less digits than its factorization.

26040134460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407070 (or 407068 counting only the distinct ones).

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

The spelling of 26040134460 in words is "twenty-six billion, forty million, one hundred thirty-four thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1069 2138 3207 4276 5345 6414 10690 12828 16035 21380 32070 64140 405989 811978 1217967 1623956 2029945 2435934 4059890 4871868 6089835 8119780 12179670 24359340 434002241 868004482 1302006723 1736008964 2170011205 2604013446 4340022410 5208026892 6510033615 8680044820 13020067230 26040134460