Search a number
-
+
102152931 = 397351041
BaseRepresentation
bin1100001011010…
…11101011100011
321010012220110220
412011223223203
5202122343211
614045254123
72350166646
oct605535343
9233186426
10102152931
1152732011
122a264343
131821872a
14d7d1a5d
158e7c806
hex616bae3

102152931 has 8 divisors (see below), whose sum is σ = 137608464. Its totient is φ = 67399680.

The previous prime is 102152929. The next prime is 102152969. The reversal of 102152931 is 139251201.

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

It is not a de Polignac number, because 102152931 - 21 = 102152929 is a prime.

It is a super-2 number, since 2×1021529312 = 20870442623781522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102152431) 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, 175230 + ... + 175811.

It is an arithmetic number, because the mean of its divisors is an integer number (17201058).

Almost surely, 2102152931 is an apocalyptic number.

102152931 is a deficient number, since it is larger than the sum of its proper divisors (35455533).

102152931 is an equidigital number, since it uses as much as digits as its factorization.

102152931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351141.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 102152931 is about 10107.0733152580. The cubic root of 102152931 is about 467.4662673097.

The spelling of 102152931 in words is "one hundred two million, one hundred fifty-two thousand, nine hundred thirty-one".

Divisors: 1 3 97 291 351041 1053123 34050977 102152931