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12872209042 = 2711973372557
BaseRepresentation
bin10111111110011111…
…00101001010010010
31020020002022222020001
423333033211022102
5202330241142132
65525144040214
7633661654150
oct137717451222
936202288201
1012872209042
1155060321a0
1225b2a6306a
1312a1a7a854
148a17c23d0
1550510cce7
hex2ff3e5292

12872209042 has 64 divisors (see below), whose sum is σ = 24402583296. Its totient is φ = 4946780160.

The previous prime is 12872208991. The next prime is 12872209061. The reversal of 12872209042 is 24090227821.

It is a junction number, because it is equal to n+sod(n) for n = 12872208992 and 12872209010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5032828 + ... + 5035384.

It is an arithmetic number, because the mean of its divisors is an integer number (381290364).

Almost surely, 212872209042 is an apocalyptic number.

12872209042 is a deficient number, since it is larger than the sum of its proper divisors (11530374254).

12872209042 is a wasteful number, since it uses less digits than its factorization.

12872209042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 12872209042 in words is "twelve billion, eight hundred seventy-two million, two hundred nine thousand, forty-two".

Divisors: 1 2 7 11 14 22 77 97 154 194 337 674 679 1067 1358 2134 2359 2557 3707 4718 5114 7414 7469 14938 17899 25949 28127 32689 35798 51898 56254 65378 196889 228823 248029 359579 393778 457646 496058 719158 861709 1723418 1736203 2517053 2728319 3472406 5034106 5456638 6031963 9478799 12063926 18957598 19098233 38196466 66351593 83585773 132703186 167171546 585100411 919443503 1170200822 1838887006 6436104521 12872209042