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12870448406 = 213946296577
BaseRepresentation
bin10111111110010001…
…10111010100010110
31020012222000112002022
423333020313110112
5202324313322111
65525042213142
7633641002124
oct137710672426
936188015068
1012870448406
11550503a422
1225b23541b2
1312a15b235a
148a1484914
15504db12db
hex2ff237516

12870448406 has 8 divisors (see below), whose sum is σ = 19444562760. Its totient is φ = 6388927488.

The previous prime is 12870448403. The next prime is 12870448411. The reversal of 12870448406 is 60484407821.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12870448403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23148011 + ... + 23148566.

It is an arithmetic number, because the mean of its divisors is an integer number (2430570345).

Almost surely, 212870448406 is an apocalyptic number.

12870448406 is a deficient number, since it is larger than the sum of its proper divisors (6574114354).

12870448406 is a wasteful number, since it uses less digits than its factorization.

12870448406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46296718.

The product of its (nonzero) digits is 344064, while the sum is 44.

The spelling of 12870448406 in words is "twelve billion, eight hundred seventy million, four hundred forty-eight thousand, four hundred six".

Divisors: 1 2 139 278 46296577 92593154 6435224203 12870448406