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18379190 = 251837919
BaseRepresentation
bin100011000011…
…1000110110110
31021120202111202
41012013012312
514201113230
61453532502
7312135434
oct106070666
937522452
1018379190
11a413615
1261a4132
133a6677b
142625d54
151930a45
hex11871b6

18379190 has 8 divisors (see below), whose sum is σ = 33082560. Its totient is φ = 7351672.

The previous prime is 18379177. The next prime is 18379199. The reversal of 18379190 is 9197381.

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

It is a super-2 number, since 2×183791902 = 675589250112200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18379199) 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, 918950 + ... + 918969.

It is an arithmetic number, because the mean of its divisors is an integer number (4135320).

Almost surely, 218379190 is an apocalyptic number.

18379190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18379190 is a deficient number, since it is larger than the sum of its proper divisors (14703370).

18379190 is a wasteful number, since it uses less digits than its factorization.

18379190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837926.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 18379190 is about 4287.0957535376. The cubic root of 18379190 is about 263.9016602663.

The spelling of 18379190 in words is "eighteen million, three hundred seventy-nine thousand, one hundred ninety".

Divisors: 1 2 5 10 1837919 3675838 9189595 18379190