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20148832 = 251157241
BaseRepresentation
bin100110011011…
…1001001100000
31101220200000001
41030313021200
520124230312
61555505344
7333155644
oct114671140
941820001
1020148832
1110412130
1268b8254
1342360b2
142966c24
151b80057
hex1337260

20148832 has 24 divisors (see below), whose sum is σ = 43274952. Its totient is φ = 9158400.

The previous prime is 20148829. The next prime is 20148839. The reversal of 20148832 is 23884102.

It is a self number, because there is not a number n which added to its sum of digits gives 20148832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20148839) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28269 + ... + 28972.

It is an arithmetic number, because the mean of its divisors is an integer number (1803123).

Almost surely, 220148832 is an apocalyptic number.

20148832 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20148832 is an abundant number, since it is smaller than the sum of its proper divisors (23126120).

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

20148832 is a wasteful number, since it uses less digits than its factorization.

20148832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57262 (or 57254 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 20148832 is about 4488.7450361989. The cubic root of 20148832 is about 272.1134186747.

The spelling of 20148832 in words is "twenty million, one hundred forty-eight thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 57241 114482 228964 457928 629651 915856 1259302 1831712 2518604 5037208 10074416 20148832