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84680799 = 374998081
BaseRepresentation
bin1010000110000…
…10000001011111
312220100020012220
411003002001133
5133134241144
612223000423
72045526540
oct503020137
9186306186
1084680799
1143888a35
1224439113
131470baa8
14b3644c7
15767a919
hex50c205f

84680799 has 16 divisors (see below), whose sum is σ = 129312000. Its totient is φ = 48286080.

The previous prime is 84680773. The next prime is 84680801. The reversal of 84680799 is 99708648.

It is a happy number.

It is not a de Polignac number, because 84680799 - 25 = 84680767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84680759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6439 + ... + 14519.

It is an arithmetic number, because the mean of its divisors is an integer number (8082000).

Almost surely, 284680799 is an apocalyptic number.

84680799 is a deficient number, since it is larger than the sum of its proper divisors (44631201).

84680799 is a wasteful number, since it uses less digits than its factorization.

84680799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8590.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 84680799 is about 9202.2170698153. The cubic root of 84680799 is about 439.1318954804.

The spelling of 84680799 in words is "eighty-four million, six hundred eighty thousand, seven hundred ninety-nine".

Divisors: 1 3 7 21 499 1497 3493 8081 10479 24243 56567 169701 4032419 12097257 28226933 84680799