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12798470 = 251279847
BaseRepresentation
bin110000110100…
…101000000110
3220002020012102
4300310220012
511234022340
61134152102
7213533216
oct60645006
926066172
1012798470
117251753
124352632
132861579
1419b2246
1511cc215
hexc34a06

12798470 has 8 divisors (see below), whose sum is σ = 23037264. Its totient is φ = 5119384.

The previous prime is 12798469. The next prime is 12798479. The reversal of 12798470 is 7489721.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12798479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639914 + ... + 639933.

It is an arithmetic number, because the mean of its divisors is an integer number (2879658).

Almost surely, 212798470 is an apocalyptic number.

12798470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12798470 is a deficient number, since it is larger than the sum of its proper divisors (10238794).

12798470 is a wasteful number, since it uses less digits than its factorization.

12798470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279854.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 12798470 is about 3577.4949336093. The cubic root of 12798470 is about 233.9120983791.

The spelling of 12798470 in words is "twelve million, seven hundred ninety-eight thousand, four hundred seventy".

Divisors: 1 2 5 10 1279847 2559694 6399235 12798470