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20088418 = 271434887
BaseRepresentation
bin100110010100…
…0011001100010
31101210121010111
41030220121202
520120312133
61554321534
7332514550
oct114503142
941717114
1020088418
11103807a9
1268892aa
13421474c
14294cbd0
151b6c1cd
hex1328662

20088418 has 8 divisors (see below), whose sum is σ = 34437312. Its totient is φ = 8609316.

The previous prime is 20088391. The next prime is 20088427. The reversal of 20088418 is 81488002.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20088418.

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, 717430 + ... + 717457.

It is an arithmetic number, because the mean of its divisors is an integer number (4304664).

Almost surely, 220088418 is an apocalyptic number.

20088418 is a deficient number, since it is larger than the sum of its proper divisors (14348894).

20088418 is a wasteful number, since it uses less digits than its factorization.

20088418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434896.

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 20088418 is about 4482.0104863777. The cubic root of 20088418 is about 271.8411792694.

The spelling of 20088418 in words is "twenty million, eighty-eight thousand, four hundred eighteen".

Divisors: 1 2 7 14 1434887 2869774 10044209 20088418