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18880324 = 2219923719
BaseRepresentation
bin100100000000…
…1011101000100
31022112012221021
41020001131010
514313132244
61512400524
7316323451
oct110013504
938465837
1018880324
11a726081
1263a6144
133bb08b8
142716828
1519ce284
hex1201744

18880324 has 12 divisors (see below), whose sum is σ = 33208000. Its totient is φ = 9392328.

The previous prime is 18880321. The next prime is 18880327. The reversal of 18880324 is 42308881.

It is an interprime number because it is at equal distance from previous prime (18880321) and next prime (18880327).

It is a self number, because there is not a number n which added to its sum of digits gives 18880324.

It is not an unprimeable number, because it can be changed into a prime (18880321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11064 + ... + 12655.

Almost surely, 218880324 is an apocalyptic number.

It is an amenable number.

18880324 is a deficient number, since it is larger than the sum of its proper divisors (14327676).

18880324 is a wasteful number, since it uses less digits than its factorization.

18880324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23922 (or 23920 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 18880324 is about 4345.1494795922. The cubic root of 18880324 is about 266.2787324529.

The spelling of 18880324 in words is "eighteen million, eight hundred eighty thousand, three hundred twenty-four".

Divisors: 1 2 4 199 398 796 23719 47438 94876 4720081 9440162 18880324