Search a number
-
+
18874896 = 2431723131
BaseRepresentation
bin100100000000…
…0001000010000
31022111221111020
41020000020100
514312444041
61512315440
7316301565
oct110001020
938457436
1018874896
11a721a97
1263a2b80
133bab2a1
14271486c
1519cc866
hex1200210

18874896 has 40 divisors (see below), whose sum is σ = 51630624. Its totient is φ = 5921280.

The previous prime is 18874859. The next prime is 18874897. The reversal of 18874896 is 69847881.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (18874897) 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, 10750 + ... + 12381.

Almost surely, 218874896 is an apocalyptic number.

18874896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18874896 is an abundant number, since it is smaller than the sum of its proper divisors (32755728).

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

18874896 is a wasteful number, since it uses less digits than its factorization.

18874896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23159 (or 23153 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The square root of 18874896 is about 4344.5248301742. The cubic root of 18874896 is about 266.2532120664.

The spelling of 18874896 in words is "eighteen million, eight hundred seventy-four thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 204 272 408 816 23131 46262 69393 92524 138786 185048 277572 370096 393227 555144 786454 1110288 1179681 1572908 2359362 3145816 4718724 6291632 9437448 18874896