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12502998 = 234113683
BaseRepresentation
bin101111101100…
…011111010110
3212112012220000
4233230133112
511200043443
61123552130
7211162614
oct57543726
925465800
1012502998
11706a762
12422b646
132789c31
1419366b4
15116e8d3
hexbec7d6

12502998 has 40 divisors (see below), whose sum is σ = 28305288. Its totient is φ = 4124736.

The previous prime is 12502993. The next prime is 12503011. The reversal of 12502998 is 89920521.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12502993) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17965 + ... + 18647.

Almost surely, 212502998 is an apocalyptic number.

12502998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12502998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14152644).

12502998 is an abundant number, since it is smaller than the sum of its proper divisors (15802290).

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

12502998 is a wasteful number, since it uses less digits than its factorization.

12502998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 12502998 is about 3535.9578617399. The cubic root of 12502998 is about 232.0979941753.

The spelling of 12502998 in words is "twelve million, five hundred two thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 9 18 27 54 81 113 162 226 339 678 683 1017 1366 2034 2049 3051 4098 6102 6147 9153 12294 18306 18441 36882 55323 77179 110646 154358 231537 463074 694611 1389222 2083833 4167666 6251499 12502998