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18374007 = 319322351
BaseRepresentation
bin100011000010…
…1110101110111
31021120111101210
41012011311313
514200432012
61453452503
7312114351
oct106056567
937514353
1018374007
11a40a733
1261a1133
133a642c2
1426240d1
15192e23c
hex1185d77

18374007 has 8 divisors (see below), whose sum is σ = 25788160. Its totient is φ = 11604600.

The previous prime is 18373981. The next prime is 18374011. The reversal of 18374007 is 70047381.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18374007 - 211 = 18371959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18374047) 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, 161119 + ... + 161232.

It is an arithmetic number, because the mean of its divisors is an integer number (3223520).

Almost surely, 218374007 is an apocalyptic number.

18374007 is a deficient number, since it is larger than the sum of its proper divisors (7414153).

18374007 is a wasteful number, since it uses less digits than its factorization.

18374007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322373.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 18374007 is about 4286.4912224336. The cubic root of 18374007 is about 263.8768508505.

The spelling of 18374007 in words is "eighteen million, three hundred seventy-four thousand, seven".

Divisors: 1 3 19 57 322351 967053 6124669 18374007