Search a number
-
+
137982814 = 268991407
BaseRepresentation
bin10000011100101…
…11001101011110
3100121122020211121
420032113031132
5240310422224
621405241154
73263556154
oct1016271536
9317566747
10137982814
1170984592
123a2631ba
1322782148
141447b3d4
15c1a8be4
hex839735e

137982814 has 4 divisors (see below), whose sum is σ = 206974224. Its totient is φ = 68991406.

The previous prime is 137982799. The next prime is 137982821. The reversal of 137982814 is 418289731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 418289731 = 1922015249.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34495702 + ... + 34495705.

It is an arithmetic number, because the mean of its divisors is an integer number (51743556).

Almost surely, 2137982814 is an apocalyptic number.

137982814 is a deficient number, since it is larger than the sum of its proper divisors (68991410).

137982814 is an equidigital number, since it uses as much as digits as its factorization.

137982814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68991409.

The product of its digits is 96768, while the sum is 43.

The square root of 137982814 is about 11746.6086169583. The cubic root of 137982814 is about 516.7434723603.

The spelling of 137982814 in words is "one hundred thirty-seven million, nine hundred eighty-two thousand, eight hundred fourteen".

Divisors: 1 2 68991407 137982814