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152212201 = 314910071
BaseRepresentation
bin10010001001010…
…01001011101001
3101121102011212221
421010221023221
5302431242301
623034234041
73525532231
oct1104511351
9347364787
10152212201
1178a13309
1242b85921
13256c4abb
1416302cc1
15d569da1
hex91292e9

152212201 has 4 divisors (see below), whose sum is σ = 157122304. Its totient is φ = 147302100.

The previous prime is 152212187. The next prime is 152212241. The reversal of 152212201 is 102212251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102212251 = 103398947.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-152212201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152212241) 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, 2455005 + ... + 2455066.

It is an arithmetic number, because the mean of its divisors is an integer number (39280576).

Almost surely, 2152212201 is an apocalyptic number.

It is an amenable number.

152212201 is a deficient number, since it is larger than the sum of its proper divisors (4910103).

152212201 is an equidigital number, since it uses as much as digits as its factorization.

152212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4910102.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 152212201 is about 12337.4308913971. The cubic root of 152212201 is about 533.9285640435.

Adding to 152212201 its reverse (102212251), we get a palindrome (254424452).

The spelling of 152212201 in words is "one hundred fifty-two million, two hundred twelve thousand, two hundred one".

Divisors: 1 31 4910071 152212201