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12242870 = 251224287
BaseRepresentation
bin101110101100…
…111110110110
3212001000001122
4232230332312
511113232440
61114223542
7206030333
oct56547666
925030048
1012242870
116a02282
124124bb2
1326c8703
1418a998a
15111c7b5
hexbacfb6

12242870 has 8 divisors (see below), whose sum is σ = 22037184. Its totient is φ = 4897144.

The previous prime is 12242869. The next prime is 12242891. The reversal of 12242870 is 7824221.

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

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, 612134 + ... + 612153.

It is an arithmetic number, because the mean of its divisors is an integer number (2754648).

Almost surely, 212242870 is an apocalyptic number.

12242870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12242870 is a deficient number, since it is larger than the sum of its proper divisors (9794314).

12242870 is a wasteful number, since it uses less digits than its factorization.

12242870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224294.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 12242870 is about 3498.9812803157. The cubic root of 12242870 is about 230.4770815546.

The spelling of 12242870 in words is "twelve million, two hundred forty-two thousand, eight hundred seventy".

Divisors: 1 2 5 10 1224287 2448574 6121435 12242870