Search a number
-
+
102032131 = 105197081
BaseRepresentation
bin1100001010011…
…10001100000011
321002222202202211
412011032030003
5202110012011
614042522551
72346154525
oct605161403
9232882684
10102032131
115265a283
122a206457
13181a5756
14d79da15
158e56b21
hex614e303

102032131 has 4 divisors (see below), whose sum is σ = 102130264. Its totient is φ = 101934000.

The previous prime is 102032123. The next prime is 102032143. The reversal of 102032131 is 131230201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102032131 - 23 = 102032123 is a prime.

It is a super-2 number, since 2×1020321312 = 20821111512802322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102032171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47490 + ... + 49591.

It is an arithmetic number, because the mean of its divisors is an integer number (25532566).

Almost surely, 2102032131 is an apocalyptic number.

102032131 is a deficient number, since it is larger than the sum of its proper divisors (98133).

102032131 is an equidigital number, since it uses as much as digits as its factorization.

102032131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98132.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 102032131 is about 10101.0955346438. The cubic root of 102032131 is about 467.2819286634.

Adding to 102032131 its reverse (131230201), we get a palindrome (233262332).

The spelling of 102032131 in words is "one hundred two million, thirty-two thousand, one hundred thirty-one".

Divisors: 1 1051 97081 102032131