Search a number
-
+
152203131 = 3410917239
BaseRepresentation
bin10010001001001…
…10111101111011
3101121101201110000
421010212331323
5302431000011
623034124043
73525463623
oct1104467573
9347351400
10152203131
1178a07513
1242b80623
13256c0932
14162dd883
15d567356
hex9126f7b

152203131 has 20 divisors (see below), whose sum is σ = 229464400. Its totient is φ = 100532016.

The previous prime is 152203127. The next prime is 152203133. The reversal of 152203131 is 131302251.

It is not a de Polignac number, because 152203131 - 22 = 152203127 is a prime.

It is a super-2 number, since 2×1522031312 = 46331586172406322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152203133) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 210 + ... + 17448.

It is an arithmetic number, because the mean of its divisors is an integer number (11473220).

Almost surely, 2152203131 is an apocalyptic number.

152203131 is a deficient number, since it is larger than the sum of its proper divisors (77261269).

152203131 is a wasteful number, since it uses less digits than its factorization.

152203131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17360 (or 17351 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 152203131 is about 12337.0633053413. The cubic root of 152203131 is about 533.9179586119.

Adding to 152203131 its reverse (131302251), we get a palindrome (283505382).

The spelling of 152203131 in words is "one hundred fifty-two million, two hundred three thousand, one hundred thirty-one".

Divisors: 1 3 9 27 81 109 327 981 2943 8829 17239 51717 155151 465453 1396359 1879051 5637153 16911459 50734377 152203131