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84690681801 = 31119121136359
BaseRepresentation
bin100111011011111110…
…1010011111111001001
322002121020110101202120
41032313331103333021
52341421303304201
6102523435121453
76055466626515
oct1166775237711
9262536411676
1084690681801
1132a0a755810
12144b68a3289
137ca8b8248b
144155b1d145
15230a1c5536
hex13b7f53fc9

84690681801 has 32 divisors (see below), whose sum is σ = 123909488640. Its totient is φ = 51026764800.

The previous prime is 84690681799. The next prime is 84690681827. The reversal of 84690681801 is 10818609648.

It is not a de Polignac number, because 84690681801 - 21 = 84690681799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84690681841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13315060 + ... + 13321418.

It is an arithmetic number, because the mean of its divisors is an integer number (3872171520).

Almost surely, 284690681801 is an apocalyptic number.

It is an amenable number.

84690681801 is a deficient number, since it is larger than the sum of its proper divisors (39218806839).

84690681801 is a wasteful number, since it uses less digits than its factorization.

84690681801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8677.

The product of its (nonzero) digits is 663552, while the sum is 51.

The spelling of 84690681801 in words is "eighty-four billion, six hundred ninety million, six hundred eighty-one thousand, eight hundred one".

Divisors: 1 3 11 33 191 573 2101 2113 6303 6339 6359 19077 23243 69729 69949 209847 403583 1210749 1214569 3643707 4439413 13318239 13360259 13436567 40080777 40309701 147802237 443406711 2566384297 7699152891 28230227267 84690681801