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82142630 = 258214263
BaseRepresentation
bin1001110010101…
…10010110100110
312201120021111122
410321112112212
5132012031010
612052333542
72015125613
oct471262646
9181507448
1082142630
1142404a79
12236142b2
131403070b
14aca350a
157328855
hex4e565a6

82142630 has 8 divisors (see below), whose sum is σ = 147856752. Its totient is φ = 32857048.

The previous prime is 82142629. The next prime is 82142651. The reversal of 82142630 is 3624128.

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

It is a self number, because there is not a number n which added to its sum of digits gives 82142630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4107122 + ... + 4107141.

It is an arithmetic number, because the mean of its divisors is an integer number (18482094).

Almost surely, 282142630 is an apocalyptic number.

82142630 is a deficient number, since it is larger than the sum of its proper divisors (65714122).

82142630 is a wasteful number, since it uses less digits than its factorization.

82142630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8214270.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 82142630 is about 9063.2571407855. The cubic root of 82142630 is about 434.6998942956.

Adding to 82142630 its reverse (3624128), we get a palindrome (85766758).

The spelling of 82142630 in words is "eighty-two million, one hundred forty-two thousand, six hundred thirty".

Divisors: 1 2 5 10 8214263 16428526 41071315 82142630