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82482421 = 717368111
BaseRepresentation
bin1001110101010…
…01010011110101
312202012112121111
410322221103311
5132103414141
612103515021
72021042350
oct472512365
9182175544
1082482421
114261729a
1223758a71
131411c288
14ad51297
157394381
hex4ea94f5

82482421 has 8 divisors (see below), whose sum is σ = 94811904. Its totient is φ = 70289520.

The previous prime is 82482397. The next prime is 82482437. The reversal of 82482421 is 12428428.

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

It is not a de Polignac number, because 82482421 - 211 = 82480373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82482121) 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, 32845 + ... + 35266.

It is an arithmetic number, because the mean of its divisors is an integer number (11851488).

Almost surely, 282482421 is an apocalyptic number.

It is an amenable number.

82482421 is a deficient number, since it is larger than the sum of its proper divisors (12329483).

82482421 is a wasteful number, since it uses less digits than its factorization.

82482421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68291.

The product of its digits is 8192, while the sum is 31.

The square root of 82482421 is about 9081.9833186370. The cubic root of 82482421 is about 435.2984625431.

The spelling of 82482421 in words is "eighty-two million, four hundred eighty-two thousand, four hundred twenty-one".

Divisors: 1 7 173 1211 68111 476777 11783203 82482421