Search a number
-
+
20137794 = 2331310723
BaseRepresentation
bin100110011010…
…0011101000010
31101220002212020
41030310131002
520123402134
61555342310
7333111525
oct114643502
941802766
1020137794
1110404906
1268b1996
134231071
142962bbc
151b7bb49
hex1334742

20137794 has 16 divisors (see below), whose sum is σ = 40408032. Its totient is φ = 6690528.

The previous prime is 20137787. The next prime is 20137823. The reversal of 20137794 is 49773102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3484 + ... + 7239.

It is an arithmetic number, because the mean of its divisors is an integer number (2525502).

Almost surely, 220137794 is an apocalyptic number.

20137794 is an abundant number, since it is smaller than the sum of its proper divisors (20270238).

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

20137794 is a wasteful number, since it uses less digits than its factorization.

20137794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11041.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 20137794 is about 4487.5153481632. The cubic root of 20137794 is about 272.0637195728.

The spelling of 20137794 in words is "twenty million, one hundred thirty-seven thousand, seven hundred ninety-four".

Divisors: 1 2 3 6 313 626 939 1878 10723 21446 32169 64338 3356299 6712598 10068897 20137794