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312113011233 = 3139748472449
BaseRepresentation
bin1001000101010110110…
…00101001101000100001
31002211121200200202100210
410202223120221220201
520103201412324413
6355214401004333
731356310552032
oct4425330515041
91084550622323
10312113011233
11110403726991
12505a60236a9
132358051128a
141116bb7aa89
1581bad043c3
hex48ab629a21

312113011233 has 8 divisors (see below), whose sum is σ = 419144572000. Its totient is φ = 206578395648.

The previous prime is 312113011213. The next prime is 312113011261. The reversal of 312113011233 is 332110311213.

It is a happy number.

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

It is not a de Polignac number, because 312113011233 - 29 = 312113010721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312113011213) 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, 374235808 + ... + 374236641.

It is an arithmetic number, because the mean of its divisors is an integer number (52393071500).

Almost surely, 2312113011233 is an apocalyptic number.

It is an amenable number.

312113011233 is a deficient number, since it is larger than the sum of its proper divisors (107031560767).

312113011233 is a wasteful number, since it uses less digits than its factorization.

312113011233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748472591.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 312113011233 its reverse (332110311213), we get a palindrome (644223322446).

The spelling of 312113011233 in words is "three hundred twelve billion, one hundred thirteen million, eleven thousand, two hundred thirty-three".

Divisors: 1 3 139 417 748472449 2245417347 104037670411 312113011233