Search a number
-
+
108253491 = 3291244293
BaseRepresentation
bin1100111001111…
…01000100110011
321112200211212120
412130331010303
5210203102431
614424125323
72453065563
oct634750463
9245624776
10108253491
11561194a5
1230306843
1319573428
141053cda3
159785196
hex673d133

108253491 has 8 divisors (see below), whose sum is σ = 149315280. Its totient is φ = 69680352.

The previous prime is 108253477. The next prime is 108253493. The reversal of 108253491 is 194352801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 108253491 - 211 = 108251443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108253493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622060 + ... + 622233.

It is an arithmetic number, because the mean of its divisors is an integer number (18664410).

Almost surely, 2108253491 is an apocalyptic number.

108253491 is a deficient number, since it is larger than the sum of its proper divisors (41061789).

108253491 is a wasteful number, since it uses less digits than its factorization.

108253491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244325.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 108253491 is about 10404.4937887434. The cubic root of 108253491 is about 476.5926095411.

The spelling of 108253491 in words is "one hundred eight million, two hundred fifty-three thousand, four hundred ninety-one".

Divisors: 1 3 29 87 1244293 3732879 36084497 108253491