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3111302012 = 2271316215273
BaseRepresentation
bin1011100101110010…
…1011001101111100
322000211110111222212
42321130223031330
522332443131022
61232421555552
7140046426230
oct27134531574
98024414885
103111302012
111357281285
12729b75bb8
133a7784410
142172da5c0
1513322c3e2
hexb972b37c

3111302012 has 48 divisors (see below), whose sum is σ = 6706671552. Its totient is φ = 1229852160.

The previous prime is 3111302009. The next prime is 3111302053. The reversal of 3111302012 is 2102031113.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 587408 + ... + 592680.

It is an arithmetic number, because the mean of its divisors is an integer number (139722324).

Almost surely, 23111302012 is an apocalyptic number.

It is an amenable number.

3111302012 is an abundant number, since it is smaller than the sum of its proper divisors (3595369540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3111302012 is a wasteful number, since it uses less digits than its factorization.

3111302012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6918 (or 6916 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 3111302012 is about 55779.0463525507. The cubic root of 3111302012 is about 1459.8695717601.

Adding to 3111302012 its reverse (2102031113), we get a palindrome (5213333125).

The spelling of 3111302012 in words is "three billion, one hundred eleven million, three hundred two thousand, twelve".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 1621 3242 5273 6484 10546 11347 21073 21092 22694 36911 42146 45388 68549 73822 84292 137098 147511 147644 274196 295022 479843 590044 959686 1919372 8547533 17095066 34190132 59832731 111117929 119665462 222235858 239330924 444471716 777825503 1555651006 3111302012