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101232231 = 333744077
BaseRepresentation
bin1100000100010…
…10111001100111
321001111010111220
412002022321213
5201403412411
614013431423
72336313462
oct602127147
9231433456
10101232231
1152163301
1229a9b573
1317c85639
14d6322d9
158d49b06
hex608ae67

101232231 has 4 divisors (see below), whose sum is σ = 134976312. Its totient is φ = 67488152.

The previous prime is 101232181. The next prime is 101232251. The reversal of 101232231 is 132232101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132232101 = 344077367.

It is a cyclic number.

It is not a de Polignac number, because 101232231 - 223 = 92843623 is a prime.

It is a super-2 number, since 2×1012322312 = 20495929186474722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101232231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101232251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16872036 + ... + 16872041.

It is an arithmetic number, because the mean of its divisors is an integer number (33744078).

Almost surely, 2101232231 is an apocalyptic number.

101232231 is a deficient number, since it is larger than the sum of its proper divisors (33744081).

101232231 is an equidigital number, since it uses as much as digits as its factorization.

101232231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33744080.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 101232231 is about 10061.4229112984. The cubic root of 101232231 is about 466.0576089081.

Adding to 101232231 its reverse (132232101), we get a palindrome (233464332).

The spelling of 101232231 in words is "one hundred one million, two hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 3 33744077 101232231