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312311002124 = 22117097977321
BaseRepresentation
bin1001000101101110010…
…11111011010000001100
31002212010111020201210202
410202313023323100030
520104103104031444
6355250152353032
731364233500662
oct4426713732014
91085114221722
10312311002124
111104a5467420
12506403a5778
13235b2543c54
141118a198c32
1581cd3b334e
hex48b72fb40c

312311002124 has 12 divisors (see below), whose sum is σ = 596230095048. Its totient is φ = 141959546400.

The previous prime is 312311002121. The next prime is 312311002243. The reversal of 312311002124 is 421200113213.

It is a super-2 number, since 2×3123110021242 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312311002096 and 312311002105.

It is not an unprimeable number, because it can be changed into a prime (312311002121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3548988617 + ... + 3548988704.

It is an arithmetic number, because the mean of its divisors is an integer number (49685841254).

Almost surely, 2312311002124 is an apocalyptic number.

It is an amenable number.

312311002124 is a deficient number, since it is larger than the sum of its proper divisors (283919092924).

312311002124 is a wasteful number, since it uses less digits than its factorization.

312311002124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7097977336 (or 7097977334 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 312311002124 its reverse (421200113213), we get a palindrome (733511115337).

The spelling of 312311002124 in words is "three hundred twelve billion, three hundred eleven million, two thousand, one hundred twenty-four".

Divisors: 1 2 4 11 22 44 7097977321 14195954642 28391909284 78077750531 156155501062 312311002124