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312213001033 = 17138411326889
BaseRepresentation
bin1001000101100010101…
…10000101001101001001
31002211212122211202120201
410202301112011031021
520103403012013113
6355232332052201
731361633502343
oct4426126051511
91084778752521
10312213001033
1111045511078a
1250613604061
132359815023b
141117b168293
1581c49a5cdd
hex48b1585349

312213001033 has 8 divisors (see below), whose sum is σ = 330602604840. Its totient is φ = 293826078720.

The previous prime is 312213001013. The next prime is 312213001057. The reversal of 312213001033 is 330100312213.

It can be written as a sum of positive squares in 4 ways, for example, as 88761093184 + 223451907849 = 297928^2 + 472707^2 .

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 312213001033 - 29 = 312213000521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312213001033.

It is not an unprimeable number, because it can be changed into a prime (312213001013) 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, 428148 + ... + 898741.

It is an arithmetic number, because the mean of its divisors is an integer number (41325325605).

Almost surely, 2312213001033 is an apocalyptic number.

It is an amenable number.

312213001033 is a deficient number, since it is larger than the sum of its proper divisors (18389603807).

312213001033 is a wasteful number, since it uses less digits than its factorization.

312213001033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340747.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 312213001033 its reverse (330100312213), we get a palindrome (642313313246).

The spelling of 312213001033 in words is "three hundred twelve billion, two hundred thirteen million, one thousand, thirty-three".

Divisors: 1 17 13841 235297 1326889 22557113 18365470649 312213001033