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252143059 = 736020437
BaseRepresentation
bin11110000011101…
…10010111010011
3122120110012020211
433001312113103
51004022034214
641004144551
76151115650
oct1701662723
9576405224
10252143059
1111a3678a3
1270538157
1340312c9c
14256b6c27
15172090c4
hexf0765d3

252143059 has 4 divisors (see below), whose sum is σ = 288163504. Its totient is φ = 216122616.

The previous prime is 252143029. The next prime is 252143083. The reversal of 252143059 is 950341252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252143059 - 213 = 252134867 is a prime.

It is a super-2 number, since 2×2521430592 = 127152244403754962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252143059.

It is not an unprimeable number, because it can be changed into a prime (252143029) 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, 18010212 + ... + 18010225.

It is an arithmetic number, because the mean of its divisors is an integer number (72040876).

Almost surely, 2252143059 is an apocalyptic number.

252143059 is a deficient number, since it is larger than the sum of its proper divisors (36020445).

252143059 is an equidigital number, since it uses as much as digits as its factorization.

252143059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36020444.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 252143059 is about 15879.0131620325. The cubic root of 252143059 is about 631.7554625632.

The spelling of 252143059 in words is "two hundred fifty-two million, one hundred forty-three thousand, fifty-nine".

Divisors: 1 7 36020437 252143059