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12318830 = 251231883
BaseRepresentation
bin101110111111…
…100001101110
3212011212020222
4232333201232
511123200310
61120011342
7206464646
oct56774156
925155228
1012318830
116a54357
124160b52
132724164
1418c9526
151135055
hexbbf86e

12318830 has 8 divisors (see below), whose sum is σ = 22173912. Its totient is φ = 4927528.

The previous prime is 12318809. The next prime is 12318851. The reversal of 12318830 is 3881321.

It is an interprime number because it is at equal distance from previous prime (12318809) and next prime (12318851).

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

It is a self number, because there is not a number n which added to its sum of digits gives 12318830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615932 + ... + 615951.

It is an arithmetic number, because the mean of its divisors is an integer number (2771739).

Almost surely, 212318830 is an apocalyptic number.

12318830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12318830 is a deficient number, since it is larger than the sum of its proper divisors (9855082).

12318830 is a wasteful number, since it uses less digits than its factorization.

12318830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231890.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 12318830 is about 3509.8190836566. The cubic root of 12318830 is about 230.9527585909.

The spelling of 12318830 in words is "twelve million, three hundred eighteen thousand, eight hundred thirty".

Divisors: 1 2 5 10 1231883 2463766 6159415 12318830