Search a number
-
+
28737190974 = 234789531829
BaseRepresentation
bin11010110000110111…
…101011110000111110
32202011202002120001110
4122300313223300332
5432323210102344
621111321422450
72035064043612
oct326067536076
982152076043
1028737190974
1111207438a08
1256a003aa26
13292c87c21b
141568849342
15b32d333b9
hex6b0debc3e

28737190974 has 8 divisors (see below), whose sum is σ = 57474381960. Its totient is φ = 9579063656.

The previous prime is 28737190961. The next prime is 28737191029. The reversal of 28737190974 is 47909173782.

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

28737190974 is an admirable number.

It is a super-2 number, since 2×287371909742 (a number of 22 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, 2394765909 + ... + 2394765920.

It is an arithmetic number, because the mean of its divisors is an integer number (7184297745).

Almost surely, 228737190974 is an apocalyptic number.

28737190974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28737190974 is a wasteful number, since it uses less digits than its factorization.

28737190974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789531834.

The product of its (nonzero) digits is 5334336, while the sum is 57.

The spelling of 28737190974 in words is "twenty-eight billion, seven hundred thirty-seven million, one hundred ninety thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 4789531829 9579063658 14368595487 28737190974