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26415010540 = 2251320750527
BaseRepresentation
bin11000100110011101…
…010001001011101100
32112011220111120100201
4120212131101023230
5413044220314130
620045045203244
71623405612352
oct304635211354
975156446321
1026415010540
1110225648426
125152400524
13264c73c369
1413c82857d2
15a4902ebca
hex6267512ec

26415010540 has 12 divisors (see below), whose sum is σ = 55471522176. Its totient is φ = 10566004208.

The previous prime is 26415010487. The next prime is 26415010541. The reversal of 26415010540 is 4501051462.

It is a super-2 number, since 2×264150105402 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26415010499 and 26415010508.

It is not an unprimeable number, because it can be changed into a prime (26415010541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660375244 + ... + 660375283.

It is an arithmetic number, because the mean of its divisors is an integer number (4622626848).

Almost surely, 226415010540 is an apocalyptic number.

26415010540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26415010540 is an abundant number, since it is smaller than the sum of its proper divisors (29056511636).

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

26415010540 is a wasteful number, since it uses less digits than its factorization.

26415010540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320750536 (or 1320750534 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 26415010540 in words is "twenty-six billion, four hundred fifteen million, ten thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 1320750527 2641501054 5283002108 6603752635 13207505270 26415010540