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20376306 = 233377339
BaseRepresentation
bin100110110111…
…0101011110010
31102100020001000
41031232223302
520204020211
62004422430
7335124066
oct115565362
942306030
1020376306
1110558025
1269a7a16
1342b57b2
1429c5aa6
151bc7656
hex136eaf2

20376306 has 16 divisors (see below), whose sum is σ = 45280800. Its totient is φ = 6792084.

The previous prime is 20376289. The next prime is 20376311. The reversal of 20376306 is 60367302.

20376306 is a `hidden beast` number, since 20 + 3 + 7 + 630 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 20376306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188616 + ... + 188723.

It is an arithmetic number, because the mean of its divisors is an integer number (2830050).

Almost surely, 220376306 is an apocalyptic number.

20376306 is an abundant number, since it is smaller than the sum of its proper divisors (24904494).

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

20376306 is a wasteful number, since it uses less digits than its factorization.

20376306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377350 (or 377344 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 20376306 is about 4514.0121842990. The cubic root of 20376306 is about 273.1336141020.

The spelling of 20376306 in words is "twenty million, three hundred seventy-six thousand, three hundred six".

Divisors: 1 2 3 6 9 18 27 54 377339 754678 1132017 2264034 3396051 6792102 10188153 20376306