Search a number
-
+
20614404 = 22317101051
BaseRepresentation
bin100111010100…
…0110100000100
31102210022122110
41032220310010
520234130104
62013501020
7340135206
oct116506404
942708573
1020614404
11106aa9a8
126aa1770
134369c95
142a48776
151c22e89
hex13a8d04

20614404 has 24 divisors (see below), whose sum is σ = 50930208. Its totient is φ = 6467200.

The previous prime is 20614393. The next prime is 20614409. The reversal of 20614404 is 40441602.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20614409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50322 + ... + 50729.

It is an arithmetic number, because the mean of its divisors is an integer number (2122092).

Almost surely, 220614404 is an apocalyptic number.

It is an amenable number.

20614404 is an abundant number, since it is smaller than the sum of its proper divisors (30315804).

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

20614404 is a wasteful number, since it uses less digits than its factorization.

20614404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101075 (or 101073 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20614404 is about 4540.3088000708. The cubic root of 20614404 is about 274.1933563364.

The spelling of 20614404 in words is "twenty million, six hundred fourteen thousand, four hundred four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 101051 202102 303153 404204 606306 1212612 1717867 3435734 5153601 6871468 10307202 20614404