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310311212132 = 2295218148073
BaseRepresentation
bin1001000001111111111…
…11010101010001100100
31002122222010021212122202
410200333333111101210
520041004132242012
6354315514114032
731263541532315
oct4407777252144
91078863255582
10310311212132
1110a669653619
125018271b918
132335414136c
141103a75660c
158112a42cc2
hex483ffd5464

310311212132 has 12 divisors (see below), whose sum is σ = 543101724396. Its totient is φ = 155139290880.

The previous prime is 310311212063. The next prime is 310311212153. The reversal of 310311212132 is 231212113013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 250474224676 + 59836987456 = 500474^2 + 244616^2 .

It is a super-2 number, since 2×3103112121322 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4035953 + ... + 4112120.

It is an arithmetic number, because the mean of its divisors is an integer number (45258477033).

Almost surely, 2310311212132 is an apocalyptic number.

It is an amenable number.

310311212132 is a deficient number, since it is larger than the sum of its proper divisors (232790512264).

310311212132 is a wasteful number, since it uses less digits than its factorization.

310311212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157598 (or 8157596 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 310311212132 its reverse (231212113013), we get a palindrome (541523325145).

The spelling of 310311212132 in words is "three hundred ten billion, three hundred eleven million, two hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 4 9521 19042 38084 8148073 16296146 32592292 77577803033 155155606066 310311212132