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12785458046 = 212750336449
BaseRepresentation
bin10111110100001001…
…01001101101111110
31020000001002120020012
423322010221231332
5202141034124141
65512404423222
7631556412614
oct137204515576
936001076205
1012785458046
11547106a959
1225899a7b12
131289ac56ba
1489407d6b4
154ec6c3ceb
hex2fa129b7e

12785458046 has 8 divisors (see below), whose sum is σ = 19329196800. Its totient is φ = 6342392448.

The previous prime is 12785458033. The next prime is 12785458057. The reversal of 12785458046 is 64085458721.

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

It is a super-2 number, since 2×127854580462 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12785457985 and 12785458003.

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, 25167971 + ... + 25168478.

It is an arithmetic number, because the mean of its divisors is an integer number (2416149600).

Almost surely, 212785458046 is an apocalyptic number.

12785458046 is a deficient number, since it is larger than the sum of its proper divisors (6543738754).

12785458046 is a wasteful number, since it uses less digits than its factorization.

12785458046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50336578.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 12785458046 in words is "twelve billion, seven hundred eighty-five million, four hundred fifty-eight thousand, forty-six".

Divisors: 1 2 127 254 50336449 100672898 6392729023 12785458046