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12401199 = 321377911
BaseRepresentation
bin101111010011…
…101000101111
3212100001020200
4233103220233
511133314244
61121444543
7210260046
oct57235057
925301220
1012401199
117000228
1241a0753
1327527b5
14190b55d
15114e669
hexbd3a2f

12401199 has 6 divisors (see below), whose sum is σ = 17912856. Its totient is φ = 8267460.

The previous prime is 12401189. The next prime is 12401251. The reversal of 12401199 is 99110421.

It is not a de Polignac number, because 12401199 - 28 = 12400943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 688947 + ... + 688964.

It is an arithmetic number, because the mean of its divisors is an integer number (2985476).

Almost surely, 212401199 is an apocalyptic number.

12401199 is a deficient number, since it is larger than the sum of its proper divisors (5511657).

12401199 is a wasteful number, since it uses less digits than its factorization.

12401199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377917 (or 1377914 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 12401199 is about 3521.5336147764. The cubic root of 12401199 is about 231.4663654064.

The spelling of 12401199 in words is "twelve million, four hundred one thousand, one hundred ninety-nine".

Divisors: 1 3 9 1377911 4133733 12401199