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82630469 = 312665499
BaseRepresentation
bin1001110110011…
…01011101000101
312202111001200202
410323031131011
5132123133334
612111020245
72022230105
oct473153505
9182431622
1082630469
1142708549
122380a685
131417178c
14ad8d205
1573c317e
hex4ecd745

82630469 has 4 divisors (see below), whose sum is σ = 85296000. Its totient is φ = 79964940.

The previous prime is 82630463. The next prime is 82630507. The reversal of 82630469 is 96403628.

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 not a de Polignac number, because 82630469 - 24 = 82630453 is a prime.

It is a super-2 number, since 2×826304692 = 13655588814319922, 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 (82630463) 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, 1332719 + ... + 1332780.

It is an arithmetic number, because the mean of its divisors is an integer number (21324000).

Almost surely, 282630469 is an apocalyptic number.

It is an amenable number.

82630469 is a deficient number, since it is larger than the sum of its proper divisors (2665531).

82630469 is a wasteful number, since it uses less digits than its factorization.

82630469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665530.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 82630469 is about 9090.1303070968. The cubic root of 82630469 is about 435.5587464793.

The spelling of 82630469 in words is "eighty-two million, six hundred thirty thousand, four hundred sixty-nine".

Divisors: 1 31 2665499 82630469