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3129983 = 13123893
BaseRepresentation
bin1011111100001001111111
312220000112022
423330021333
51300124413
6151030355
735414213
oct13741177
95800468
103129983
11184866a
12106b3bb
1385787c
145b6943
1541c608
hex2fc27f

3129983 has 4 divisors (see below), whose sum is σ = 3154008. Its totient is φ = 3105960.

The previous prime is 3129967. The next prime is 3129991. The reversal of 3129983 is 3899213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3899213 = 23169531.

It is a cyclic number.

It is not a de Polignac number, because 3129983 - 24 = 3129967 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3129913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11816 + ... + 12077.

It is an arithmetic number, because the mean of its divisors is an integer number (788502).

Almost surely, 23129983 is an apocalyptic number.

3129983 is a deficient number, since it is larger than the sum of its proper divisors (24025).

3129983 is a wasteful number, since it uses less digits than its factorization.

3129983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24024.

The product of its digits is 11664, while the sum is 35.

The square root of 3129983 is about 1769.1757968048. The cubic root of 3129983 is about 146.2785543389.

The spelling of 3129983 in words is "three million, one hundred twenty-nine thousand, nine hundred eighty-three".

Divisors: 1 131 23893 3129983