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312103052 = 2278025763
BaseRepresentation
bin10010100110100…
…101000010001100
3210202021110220022
4102212211002030
51114344244202
650545241312
710506555302
oct2246450214
9722243808
10312103052
111501a0708
1288633238
134c877981
142d644272
151c5eeea2
hex129a508c

312103052 has 6 divisors (see below), whose sum is σ = 546180348. Its totient is φ = 156051524.

The previous prime is 312103027. The next prime is 312103067. The reversal of 312103052 is 250301213.

It is a self number, because there is not a number n which added to its sum of digits gives 312103052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39012878 + ... + 39012885.

It is an arithmetic number, because the mean of its divisors is an integer number (91030058).

Almost surely, 2312103052 is an apocalyptic number.

It is an amenable number.

312103052 is a deficient number, since it is larger than the sum of its proper divisors (234077296).

312103052 is a wasteful number, since it uses less digits than its factorization.

312103052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78025767 (or 78025765 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 312103052 is about 17666.4385771440. The cubic root of 312103052 is about 678.3169536995.

Adding to 312103052 its reverse (250301213), we get a palindrome (562404265).

The spelling of 312103052 in words is "three hundred twelve million, one hundred three thousand, fifty-two".

Divisors: 1 2 4 78025763 156051526 312103052