Search a number
-
+
12199194790 = 252185155829
BaseRepresentation
bin10110101110010000…
…01111000010100110
31011111011221022020021
423113020033002212
5144440443213130
65334303025354
7611210305366
oct132710170246
934434838207
1012199194790
1151a0144672
12244559b25a
1311c54c9473
1483a2709a6
154b5ebb37a
hex2d720f0a6

12199194790 has 16 divisors (see below), whose sum is σ = 21959948880. Its totient is φ = 4879367200.

The previous prime is 12199194769. The next prime is 12199194793. The reversal of 12199194790 is 9749199121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12199194793) 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, 190596 + ... + 246424.

It is an arithmetic number, because the mean of its divisors is an integer number (1372496805).

Almost surely, 212199194790 is an apocalyptic number.

12199194790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12199194790 is a deficient number, since it is larger than the sum of its proper divisors (9760754090).

12199194790 is a wasteful number, since it uses less digits than its factorization.

12199194790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77687.

The product of its (nonzero) digits is 367416, while the sum is 52.

The spelling of 12199194790 in words is "twelve billion, one hundred ninety-nine million, one hundred ninety-four thousand, seven hundred ninety".

Divisors: 1 2 5 10 21851 43702 55829 109255 111658 218510 279145 558290 1219919479 2439838958 6099597395 12199194790