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12487070 = 259411327
BaseRepresentation
bin101111101000…
…100110011110
3212111102001002
4233220212132
511144041240
61123350302
7211065311
oct57504636
925442032
1012487070
1170597a2
124222392
1327828cb
141930978
151169d15
hexbe899e

12487070 has 16 divisors (see below), whose sum is σ = 22517568. Its totient is φ = 4985760.

The previous prime is 12487039. The next prime is 12487073. The reversal of 12487070 is 7078421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12487073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8747 + ... + 10073.

It is an arithmetic number, because the mean of its divisors is an integer number (1407348).

Almost surely, 212487070 is an apocalyptic number.

12487070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12487070 is a deficient number, since it is larger than the sum of its proper divisors (10030498).

12487070 is a wasteful number, since it uses less digits than its factorization.

12487070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 12487070 is about 3533.7048546816. The cubic root of 12487070 is about 231.9993930820. Note that the first 3 decimals are identical.

The spelling of 12487070 in words is "twelve million, four hundred eighty-seven thousand, seventy".

Divisors: 1 2 5 10 941 1327 1882 2654 4705 6635 9410 13270 1248707 2497414 6243535 12487070