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82149467 = 478771993
BaseRepresentation
bin1001110010110…
…00000001011011
312201120121212212
410321120001123
5132012240332
612052425335
72015154551
oct471300133
9181517785
1082149467
114240a124
122361824b
131403386a
14aca5bd1
15732a8b2
hex4e5805b

82149467 has 8 divisors (see below), whose sum is σ = 84035136. Its totient is φ = 80269632.

The previous prime is 82149451. The next prime is 82149469. The reversal of 82149467 is 76494128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82149467 - 24 = 82149451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82149469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40223 + ... + 42215.

It is an arithmetic number, because the mean of its divisors is an integer number (10504392).

Almost surely, 282149467 is an apocalyptic number.

82149467 is a deficient number, since it is larger than the sum of its proper divisors (1885669).

82149467 is a wasteful number, since it uses less digits than its factorization.

82149467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917.

The product of its digits is 96768, while the sum is 41.

The square root of 82149467 is about 9063.6343152182. The cubic root of 82149467 is about 434.7119544594.

The spelling of 82149467 in words is "eighty-two million, one hundred forty-nine thousand, four hundred sixty-seven".

Divisors: 1 47 877 1993 41219 93671 1747861 82149467