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82914869 = 157952511
BaseRepresentation
bin1001111000100…
…10111000110101
312210000111211002
410330102320311
5132211233434
612121053045
72024523212
oct474227065
9183014732
1082914869
1142892194
1223927185
131424106b
14b024b09
15742c57e
hex4f12e35

82914869 has 4 divisors (see below), whose sum is σ = 82968960. Its totient is φ = 82860780.

The previous prime is 82914827. The next prime is 82914877. The reversal of 82914869 is 96841928.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82914869 is a prime.

It is a super-2 number, since 2×829148692 = 13749751002574322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82910869) 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, 24677 + ... + 27834.

It is an arithmetic number, because the mean of its divisors is an integer number (20742240).

Almost surely, 282914869 is an apocalyptic number.

It is an amenable number.

82914869 is a deficient number, since it is larger than the sum of its proper divisors (54091).

82914869 is a wasteful number, since it uses less digits than its factorization.

82914869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54090.

The product of its digits is 248832, while the sum is 47.

The square root of 82914869 is about 9105.7602098891. The cubic root of 82914869 is about 436.0578806108.

The spelling of 82914869 in words is "eighty-two million, nine hundred fourteen thousand, eight hundred sixty-nine".

Divisors: 1 1579 52511 82914869