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18354852 = 22323116447
BaseRepresentation
bin100011000000…
…1001010100100
31021112112010100
41012001022210
514144323402
61453224100
7312004455
oct106011244
937475110
1018354852
11a3a72aa
126192030
133a58679
14261b12c
15192871c
hex11812a4

18354852 has 36 divisors (see below), whose sum is σ = 47896576. Its totient is φ = 5920560.

The previous prime is 18354829. The next prime is 18354857. The reversal of 18354852 is 25845381.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (18354857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7108 + ... + 9339.

Almost surely, 218354852 is an apocalyptic number.

18354852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18354852 is an abundant number, since it is smaller than the sum of its proper divisors (29541724).

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

18354852 is a wasteful number, since it uses less digits than its factorization.

18354852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16488 (or 16483 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 18354852 is about 4284.2562948545. The cubic root of 18354852 is about 263.7851212935.

The spelling of 18354852 in words is "eighteen million, three hundred fifty-four thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 31 36 62 93 124 186 279 372 558 1116 16447 32894 49341 65788 98682 148023 197364 296046 509857 592092 1019714 1529571 2039428 3059142 4588713 6118284 9177426 18354852