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3102744031 = 27737111863
BaseRepresentation
bin1011100011110000…
…0001110111011111
322000020100201122121
42320330001313133
522323300302111
61231514323411
7136613613652
oct27074016737
98006321577
103102744031
111352466572
12727129567
133a5a7901a
1421610d899
151325db871
hexb8f01ddf

3102744031 has 4 divisors (see below), whose sum is σ = 3102883632. Its totient is φ = 3102604432.

The previous prime is 3102743983. The next prime is 3102744037. The reversal of 3102744031 is 1304472013.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3102744031 - 229 = 2565873119 is a prime.

It is a super-2 number, since 2×31027440312 = 19254041043812257922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3102743987 and 3102744005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3102744037) 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, 28195 + ... + 83668.

It is an arithmetic number, because the mean of its divisors is an integer number (775720908).

Almost surely, 23102744031 is an apocalyptic number.

3102744031 is a deficient number, since it is larger than the sum of its proper divisors (139601).

3102744031 is a wasteful number, since it uses less digits than its factorization.

3102744031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139600.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 3102744031 is about 55702.2803034131. The cubic root of 3102744031 is about 1458.5298316237.

The spelling of 3102744031 in words is "three billion, one hundred two million, seven hundred forty-four thousand, thirty-one".

Divisors: 1 27737 111863 3102744031