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82380490 = 2536722447
BaseRepresentation
bin1001110100100…
…00011011001010
312202000100210021
410322100123022
5132042133430
612101411054
72020136233
oct472203312
9182010707
1082380490
1142557755
1223709a8a
13140b4a6a
14ad2608a
15737407a
hex4e906ca

82380490 has 16 divisors (see below), whose sum is σ = 148695552. Its totient is φ = 32860944.

The previous prime is 82380481. The next prime is 82380491. The reversal of 82380490 is 9408328.

It is not an unprimeable number, because it can be changed into a prime (82380491) 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, 7554 + ... + 14893.

It is an arithmetic number, because the mean of its divisors is an integer number (9293472).

Almost surely, 282380490 is an apocalyptic number.

82380490 is a deficient number, since it is larger than the sum of its proper divisors (66315062).

82380490 is a wasteful number, since it uses less digits than its factorization.

82380490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22821.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 82380490 is about 9076.3698690611. The cubic root of 82380490 is about 435.1190760463.

The spelling of 82380490 in words is "eighty-two million, three hundred eighty thousand, four hundred ninety".

Divisors: 1 2 5 10 367 734 1835 3670 22447 44894 112235 224470 8238049 16476098 41190245 82380490