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252252142 = 2661190811
BaseRepresentation
bin11110000100100…
…00111111101110
3122120122201212221
433002100333232
51004034032032
641010345554
76152051662
oct1702207756
9576581787
10252252142
1111a43184a
127058b2ba
134035082c
14257048a2
151722b597
hexf090fee

252252142 has 8 divisors (see below), whose sum is σ = 378952632. Its totient is φ = 125934600.

The previous prime is 252252139. The next prime is 252252173. The reversal of 252252142 is 241252252.

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

It is a super-2 number, since 2×2522521422 = 127262286287176328, which contains 22 as substring.

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, 94084 + ... + 96727.

It is an arithmetic number, because the mean of its divisors is an integer number (47369079).

Almost surely, 2252252142 is an apocalyptic number.

252252142 is a deficient number, since it is larger than the sum of its proper divisors (126700490).

252252142 is a wasteful number, since it uses less digits than its factorization.

252252142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191474.

The product of its digits is 3200, while the sum is 25.

The square root of 252252142 is about 15882.4476073431. The cubic root of 252252142 is about 631.8465535043.

The spelling of 252252142 in words is "two hundred fifty-two million, two hundred fifty-two thousand, one hundred forty-two".

Divisors: 1 2 661 1322 190811 381622 126126071 252252142