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312103132 = 221110396827
BaseRepresentation
bin10010100110100…
…101000011011100
3210202021111000021
4102212211003130
51114344300012
650545241524
710506555445
oct2246450334
9722244007
10312103132
111501a0780
12886332a4
134c877a13
142d6442cc
151c600007
hex129a50dc

312103132 has 24 divisors (see below), whose sum is σ = 596494080. Its totient is φ = 141707760.

The previous prime is 312103091. The next prime is 312103151. The reversal of 312103132 is 231301213.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42303 + ... + 49129.

It is an arithmetic number, because the mean of its divisors is an integer number (24853920).

Almost surely, 2312103132 is an apocalyptic number.

It is an amenable number.

312103132 is a deficient number, since it is larger than the sum of its proper divisors (284390948).

312103132 is a wasteful number, since it uses less digits than its factorization.

312103132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7881 (or 7879 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 312103132 is about 17666.4408413240. The cubic root of 312103132 is about 678.3170116562.

Adding to 312103132 its reverse (231301213), we get a palindrome (543404345).

The spelling of 312103132 in words is "three hundred twelve million, one hundred three thousand, one hundred thirty-two".

Divisors: 1 2 4 11 22 44 1039 2078 4156 6827 11429 13654 22858 27308 45716 75097 150194 300388 7093253 14186506 28373012 78025783 156051566 312103132