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252303215 = 5232193941
BaseRepresentation
bin11110000100111…
…01011101101111
3122120202022221112
433002131131233
51004042200330
641011422235
76152353613
oct1702353557
9576668845
10252303215
1111a46715a
12705b497b
134036ab58
1425719343
151723b795
hexf09d76f

252303215 has 8 divisors (see below), whose sum is σ = 315927648. Its totient is φ = 193066720.

The previous prime is 252303211. The next prime is 252303229. The reversal of 252303215 is 512303252.

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

It is not a de Polignac number, because 252303215 - 22 = 252303211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252303211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096856 + ... + 1097085.

It is an arithmetic number, because the mean of its divisors is an integer number (39490956).

Almost surely, 2252303215 is an apocalyptic number.

252303215 is a deficient number, since it is larger than the sum of its proper divisors (63624433).

252303215 is a wasteful number, since it uses less digits than its factorization.

252303215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193969.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 252303215 is about 15884.0553700873. The cubic root of 252303215 is about 631.8891935405.

Adding to 252303215 its reverse (512303252), we get a palindrome (764606467).

The spelling of 252303215 in words is "two hundred fifty-two million, three hundred three thousand, two hundred fifteen".

Divisors: 1 5 23 115 2193941 10969705 50460643 252303215