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18027070 = 251802707
BaseRepresentation
bin100010011000…
…1001000111110
31020220212111021
41010301020332
514103331240
61442214354
7306141025
oct104611076
936825437
1018027070
11a1a3006
1260543ba
133972409
1425738bc
1518b154a
hex113123e

18027070 has 8 divisors (see below), whose sum is σ = 32448744. Its totient is φ = 7210824.

The previous prime is 18027059. The next prime is 18027169. The reversal of 18027070 is 7072081.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901344 + ... + 901363.

It is an arithmetic number, because the mean of its divisors is an integer number (4056093).

Almost surely, 218027070 is an apocalyptic number.

18027070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18027070 is a deficient number, since it is larger than the sum of its proper divisors (14421674).

18027070 is a wasteful number, since it uses less digits than its factorization.

18027070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802714.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 18027070 is about 4245.8297186769. The cubic root of 18027070 is about 262.2054504126.

The spelling of 18027070 in words is "eighteen million, twenty-seven thousand, seventy".

Divisors: 1 2 5 10 1802707 3605414 9013535 18027070