Search a number
-
+
12698123486 = 221383296921
BaseRepresentation
bin10111101001101110…
…11111110011011110
31012202221202111201212
423310313133303132
5202001204422421
65500004504422
7626446161116
oct136467376336
935687674655
1012698123486
11542683a134
1225646ab112
131274997a49
14886628046
154e4bc1e5b
hex2f4ddfcde

12698123486 has 8 divisors (see below), whose sum is σ = 19048140144. Its totient is φ = 6348743440.

The previous prime is 12698123443. The next prime is 12698123507. The reversal of 12698123486 is 68432189621.

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

It is a super-2 number, since 2×126981234862 (a number of 21 digits) contains 22 as substring.

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, 105695 + ... + 191226.

It is an arithmetic number, because the mean of its divisors is an integer number (2381017518).

Almost surely, 212698123486 is an apocalyptic number.

12698123486 is a deficient number, since it is larger than the sum of its proper divisors (6350016658).

12698123486 is a wasteful number, since it uses less digits than its factorization.

12698123486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318306.

The product of its digits is 995328, while the sum is 50.

The spelling of 12698123486 in words is "twelve billion, six hundred ninety-eight million, one hundred twenty-three thousand, four hundred eighty-six".

Divisors: 1 2 21383 42766 296921 593842 6349061743 12698123486