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26148830436 = 2232269512
BaseRepresentation
bin11000010110100101…
…110111110011100100
32111111100122012220100
4120112211313303210
5412023100033221
620002420104100
71613664251151
oct302645676344
974440565810
1026148830436
11100a9373373
125099235030
132609553141
1413a0b97228
15a309a1926
hex616977ce4

26148830436 has 27 divisors (see below), whose sum is σ = 66100885123. Its totient is φ = 8715953400.

The previous prime is 26148830413. The next prime is 26148830447. The reversal of 26148830436 is 63403884162.

The square root of 26148830436 is 161706.

It is a perfect power (a square), and thus also a powerful number.

26148830436 is a `hidden beast` number, since 261 + 4 + 88 + 304 + 3 + 6 = 666.

It is a super-2 number, since 2×261488304362 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26148830391 and 26148830400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 956761 + ... + 983711.

Almost surely, 226148830436 is an apocalyptic number.

26148830436 is the 161706-th square number.

It is an amenable number.

26148830436 is an abundant number, since it is smaller than the sum of its proper divisors (39952054687).

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

26148830436 is an frugal number, since it uses more digits than its factorization.

26148830436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53912 (or 26956 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 26148830436 in words is "twenty-six billion, one hundred forty-eight million, eight hundred thirty thousand, four hundred thirty-six".

Divisors: 1 2 3 4 6 9 12 18 36 26951 53902 80853 107804 161706 242559 323412 485118 970236 726356401 1452712802 2179069203 2905425604 4358138406 6537207609 8716276812 13074415218 26148830436