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3121144323 = 311269351599
BaseRepresentation
bin1011101000001000…
…1110001000000011
322001111222120002220
42322002032020003
522343003104243
61233412542123
7140226201063
oct27202161003
98044876086
103121144323
111361893a20
12731321943
133a981c27b
1421873d3a3
15134023783
hexba08e203

3121144323 has 16 divisors (see below), whose sum is σ = 4556736000. Its totient is φ = 1884565280.

The previous prime is 3121144303. The next prime is 3121144331. The reversal of 3121144323 is 3234411213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3121144323 - 28 = 3121144067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3121144293 and 3121144302.

It is not an unprimeable number, because it can be changed into a prime (3121144303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166923 + ... + 184676.

It is an arithmetic number, because the mean of its divisors is an integer number (284796000).

Almost surely, 23121144323 is an apocalyptic number.

3121144323 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3121144323 is a deficient number, since it is larger than the sum of its proper divisors (1435591677).

3121144323 is a wasteful number, since it uses less digits than its factorization.

3121144323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351882.

The product of its digits is 1728, while the sum is 24.

The square root of 3121144323 is about 55867.2025700231. The cubic root of 3121144323 is about 1461.4073380220.

Adding to 3121144323 its reverse (3234411213), we get a palindrome (6355555536).

The spelling of 3121144323 in words is "three billion, one hundred twenty-one million, one hundred forty-four thousand, three hundred twenty-three".

Divisors: 1 3 11 33 269 807 2959 8877 351599 1054797 3867589 11602767 94580131 283740393 1040381441 3121144323