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12430998 = 232690611
BaseRepresentation
bin101111011010…
…111010010110
3212101120010100
4233122322112
511140242443
61122234530
7210442656
oct57327226
925346110
1012430998
117020658
1241b5a46
132763228
141918366
1511583d3
hexbdae96

12430998 has 12 divisors (see below), whose sum is σ = 26933868. Its totient is φ = 4143660.

The previous prime is 12430963. The next prime is 12431033. The reversal of 12430998 is 89903421.

It is an interprime number because it is at equal distance from previous prime (12430963) and next prime (12431033).

It is a super-2 number, since 2×124309982 = 309059422552008, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345288 + ... + 345323.

It is an arithmetic number, because the mean of its divisors is an integer number (2244489).

Almost surely, 212430998 is an apocalyptic number.

12430998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12430998 is an abundant number, since it is smaller than the sum of its proper divisors (14502870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12430998 is a wasteful number, since it uses less digits than its factorization.

12430998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690619 (or 690616 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 12430998 is about 3525.7620452889. The cubic root of 12430998 is about 231.6516149380.

The spelling of 12430998 in words is "twelve million, four hundred thirty thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 9 18 690611 1381222 2071833 4143666 6215499 12430998