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252122413 = 3117391097
BaseRepresentation
bin11110000011100…
…01010100101101
3122120102010221011
433001301110231
51004020404123
641003505221
76151001524
oct1701612455
9576363834
10252122413
1111a353334
1270528211
134030677a
14256ad4bb
1517202e0d
hexf07152d

252122413 has 8 divisors (see below), whose sum is σ = 253506240. Its totient is φ = 250742880.

The previous prime is 252122401. The next prime is 252122449. The reversal of 252122413 is 314221252.

It is a happy number.

252122413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-252122413 is a prime.

It is a super-2 number, since 2×2521224132 = 127131422273885138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252122713) 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, 229281 + ... + 230377.

It is an arithmetic number, because the mean of its divisors is an integer number (31688280).

Almost surely, 2252122413 is an apocalyptic number.

It is an amenable number.

252122413 is a deficient number, since it is larger than the sum of its proper divisors (1383827).

252122413 is a wasteful number, since it uses less digits than its factorization.

252122413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147.

The product of its digits is 960, while the sum is 22.

The square root of 252122413 is about 15878.3630453520. The cubic root of 252122413 is about 631.7382189406.

Adding to 252122413 its reverse (314221252), we get a palindrome (566343665).

The spelling of 252122413 in words is "two hundred fifty-two million, one hundred twenty-two thousand, four hundred thirteen".

Divisors: 1 311 739 1097 229829 341167 810683 252122413