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20914152 = 2337124489
BaseRepresentation
bin100111111000…
…1111111101000
31110100112211020
41033301333220
520323223102
62024132440
7342524130
oct117617750
943315736
1020914152
1110895126
127007120
13444354c
142ac5ac0
151c81bbc
hex13f1fe8

20914152 has 32 divisors (see below), whose sum is σ = 59755200. Its totient is φ = 5975424.

The previous prime is 20914151. The next prime is 20914163. The reversal of 20914152 is 25141902.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20914151) 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, 62077 + ... + 62412.

It is an arithmetic number, because the mean of its divisors is an integer number (1867350).

Almost surely, 220914152 is an apocalyptic number.

It is an amenable number.

20914152 is an abundant number, since it is smaller than the sum of its proper divisors (38841048).

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

20914152 is a wasteful number, since it uses less digits than its factorization.

20914152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124505 (or 124501 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 20914152 is about 4573.1993177643. The cubic root of 20914152 is about 275.5159547766.

The spelling of 20914152 in words is "twenty million, nine hundred fourteen thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 124489 248978 373467 497956 746934 871423 995912 1493868 1742846 2614269 2987736 3485692 5228538 6971384 10457076 20914152