Search a number
-
+
25000095000091 = 1912780761128287
BaseRepresentation
bin1011010111100110010011…
…10010000010011000011011
310021111222121121100010200211
411223303021302002120123
511234100143310000331
6125100515102511551
75160124442203201
oct553631162023033
9107458547303624
1025000095000091
117a69531970572
1229792292955b7
1310c4663c5aa73
14626022493071
152d549aac08b1
hex16bcc9c8261b

25000095000091 has 16 divisors (see below), whose sum is σ = 26523636367360. Its totient is φ = 23497335852480.

The previous prime is 25000095000079. The next prime is 25000095000119. The reversal of 25000095000091 is 19000059000052.

It is a cyclic number.

It is not a de Polignac number, because 25000095000091 - 217 = 25000094869019 is a prime.

It is the 5000010-th Hogben number.

It is not an unprimeable number, because it can be changed into a prime (25000095006091) by changing a digit.

It is a nontrivial repunit in base 5000009.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194812150 + ... + 194940436.

It is an arithmetic number, because the mean of its divisors is an integer number (1657727272960).

Almost surely, 225000095000091 is an apocalyptic number.

25000095000091 is a deficient number, since it is larger than the sum of its proper divisors (1523541367269).

25000095000091 is a wasteful number, since it uses less digits than its factorization.

25000095000091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209194.

The product of its (nonzero) digits is 4050, while the sum is 31.

The spelling of 25000095000091 in words is "twenty-five trillion, ninety-five million, ninety-one", and thus it is an aban number and an uban number.

Divisors: 1 19 127 2413 80761 128287 1534459 2437453 10256647 16292449 194876293 309556531 10360586407 196851141733 1315794473689 25000095000091