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312230321101 = 1657279767369
BaseRepresentation
bin1001000101100100110…
…00001001101111001101
31002211220212102201020201
410202302120021233031
520103421430233401
6355234151213501
731362233640226
oct4426230115715
91084825381221
10312230321101
11110463970596
1250619377291
132359b9058ba
141117d59624d
1581c6277b01
hex48b2609bcd

312230321101 has 8 divisors (see below), whose sum is σ = 312535089080. Its totient is φ = 311925696768.

The previous prime is 312230321089. The next prime is 312230321129. The reversal of 312230321101 is 101123032213.

It can be written as a sum of positive squares in 4 ways, for example, as 809402500 + 311420918601 = 28450^2 + 558051^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 312230321101 - 25 = 312230321069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312230321701) 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, 4600945 + ... + 4668313.

It is an arithmetic number, because the mean of its divisors is an integer number (39066886135).

Almost surely, 2312230321101 is an apocalyptic number.

It is an amenable number.

312230321101 is a deficient number, since it is larger than the sum of its proper divisors (304767979).

312230321101 is a wasteful number, since it uses less digits than its factorization.

312230321101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71823.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312230321101 its reverse (101123032213), we get a palindrome (413353353314).

The spelling of 312230321101 in words is "three hundred twelve billion, two hundred thirty million, three hundred twenty-one thousand, one hundred one".

Divisors: 1 1657 2797 67369 4634629 111630433 188431093 312230321101