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26026400540 = 2257353526637
BaseRepresentation
bin11000001111010010…
…110101101100011100
32111011211021010122202
4120033102311230130
5411300224304130
615542324031032
71610646516530
oct301722655434
974154233582
1026026400540
1110046251a38
125064232478
1325ba08820a
14138c807bc0
15a24d6b145
hex60f4b5b1c

26026400540 has 48 divisors (see below), whose sum is σ = 62640430272. Its totient is φ = 8898041856.

The previous prime is 26026400539. The next prime is 26026400549. The reversal of 26026400540 is 4500462062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26026400549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213899 + ... + 312738.

It is an arithmetic number, because the mean of its divisors is an integer number (1305008964).

Almost surely, 226026400540 is an apocalyptic number.

26026400540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26026400540 is an abundant number, since it is smaller than the sum of its proper divisors (36614029732).

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

26026400540 is a wasteful number, since it uses less digits than its factorization.

26026400540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527006 (or 527004 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 26026400540 in words is "twenty-six billion, twenty-six million, four hundred thousand, five hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 353 706 1412 1765 2471 3530 4942 7060 9884 12355 24710 49420 526637 1053274 2106548 2633185 3686459 5266370 7372918 10532740 14745836 18432295 36864590 73729180 185902861 371805722 743611444 929514305 1301320027 1859028610 2602640054 3718057220 5205280108 6506600135 13013200270 26026400540