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102232331 = 195380649
BaseRepresentation
bin1100001011111…
…11000100001011
321010100221101122
412011333010023
5202132413311
614051105455
72350650305
oct605770413
9233327348
10102232331
1152786733
122a2a228b
1318245906
14d812975
158e960db
hex617f10b

102232331 has 4 divisors (see below), whose sum is σ = 107613000. Its totient is φ = 96851664.

The previous prime is 102232313. The next prime is 102232381. The reversal of 102232331 is 133232201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133232201 = 727183263.

It is not a de Polignac number, because 102232331 - 26 = 102232267 is a prime.

It is a super-2 number, since 2×1022323312 = 20902899003387122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102232381) 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, 2690306 + ... + 2690343.

It is an arithmetic number, because the mean of its divisors is an integer number (26903250).

Almost surely, 2102232331 is an apocalyptic number.

102232331 is a deficient number, since it is larger than the sum of its proper divisors (5380669).

102232331 is an equidigital number, since it uses as much as digits as its factorization.

102232331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5380668.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 102232331 is about 10111.0004945109. Note that the first 3 decimals coincide. The cubic root of 102232331 is about 467.5873511555.

Adding to 102232331 its reverse (133232201), we get a palindrome (235464532).

The spelling of 102232331 in words is "one hundred two million, two hundred thirty-two thousand, three hundred thirty-one".

Divisors: 1 19 5380649 102232331