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18152142 = 233025357
BaseRepresentation
bin100010100111…
…1101011001110
31021011020001120
41011033223032
514121332032
61445021410
7310201461
oct105175316
937136046
1018152142
11a278a78
1260b4866
1339b7318
1425a72d8
1518d862c
hex114face

18152142 has 8 divisors (see below), whose sum is σ = 36304296. Its totient is φ = 6050712.

The previous prime is 18152131. The next prime is 18152153. The reversal of 18152142 is 24125181.

It is an interprime number because it is at equal distance from previous prime (18152131) and next prime (18152153).

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

18152142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1512673 + ... + 1512684.

It is an arithmetic number, because the mean of its divisors is an integer number (4538037).

Almost surely, 218152142 is an apocalyptic number.

18152142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18152142 is a wasteful number, since it uses less digits than its factorization.

18152142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025362.

The product of its digits is 640, while the sum is 24.

The square root of 18152142 is about 4260.5330652396. The cubic root of 18152142 is about 262.8104481203.

The spelling of 18152142 in words is "eighteen million, one hundred fifty-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 3025357 6050714 9076071 18152142