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12492570 = 235416419
BaseRepresentation
bin101111101001…
…111100011010
3212111200120210
4233221330122
511144230240
61123431550
7211120326
oct57517432
925450523
1012492570
117062942
1242255b6
13278526c
141932986
15116b780
hexbe9f1a

12492570 has 16 divisors (see below), whose sum is σ = 29982240. Its totient is φ = 3331344.

The previous prime is 12492551. The next prime is 12492581. The reversal of 12492570 is 7529421.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 416419 = 12492570 / (1 + 2 + 4 + 9 + 2 + 5 + 7 + 0).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208180 + ... + 208239.

It is an arithmetic number, because the mean of its divisors is an integer number (1873890).

Almost surely, 212492570 is an apocalyptic number.

12492570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12492570 is an abundant number, since it is smaller than the sum of its proper divisors (17489670).

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

12492570 is a wasteful number, since it uses less digits than its factorization.

12492570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416429.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 12492570 is about 3534.4829890664. The cubic root of 12492570 is about 232.0334498936.

The spelling of 12492570 in words is "twelve million, four hundred ninety-two thousand, five hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 416419 832838 1249257 2082095 2498514 4164190 6246285 12492570