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82404930 = 2355351827
BaseRepresentation
bin1001110100101…
…10011001000010
312202001121022110
410322112121002
5132043424210
612102120150
72020300416
oct472263102
9182047273
1082404930
1142574053
1223720056
13140c2c1a
14ad30d46
15737b420
hex4e96642

82404930 has 32 divisors (see below), whose sum is σ = 201507264. Its totient is φ = 21559616.

The previous prime is 82404923. The next prime is 82404941. The reversal of 82404930 is 3940428.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24324 + ... + 27503.

It is an arithmetic number, because the mean of its divisors is an integer number (6297102).

Almost surely, 282404930 is an apocalyptic number.

82404930 is an abundant number, since it is smaller than the sum of its proper divisors (119102334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82404930 is a wasteful number, since it uses less digits than its factorization.

82404930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51890.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 82404930 is about 9077.7161224616. The cubic root of 82404930 is about 435.1621010342.

The spelling of 82404930 in words is "eighty-two million, four hundred four thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 53 106 159 265 318 530 795 1590 51827 103654 155481 259135 310962 518270 777405 1554810 2746831 5493662 8240493 13734155 16480986 27468310 41202465 82404930