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8464369945 = 519787113213
BaseRepresentation
bin1111110001000010…
…00000100100011001
3210211220012112201011
413320201000210121
5114313334314240
63515524453521
7416516646253
oct77041004431
923756175634
108464369945
113653a09469
12178284a2a1
13a4b801735
145a4226cd3
153481766ea
hex1f8840919

8464369945 has 16 divisors (see below), whose sum is σ = 10705515840. Its totient is φ = 6406893504.

The previous prime is 8464369937. The next prime is 8464369951. The reversal of 8464369945 is 5499634648.

It is a cyclic number.

It is not a de Polignac number, because 8464369945 - 23 = 8464369937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8464369945.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18159 + ... + 131371.

It is an arithmetic number, because the mean of its divisors is an integer number (669094740).

Almost surely, 28464369945 is an apocalyptic number.

It is an amenable number.

8464369945 is a deficient number, since it is larger than the sum of its proper divisors (2241145895).

8464369945 is a wasteful number, since it uses less digits than its factorization.

8464369945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114024.

The product of its digits is 22394880, while the sum is 58.

The square root of 8464369945 is about 92002.0105486831. The cubic root of 8464369945 is about 2037.9719965893.

The spelling of 8464369945 in words is "eight billion, four hundred sixty-four million, three hundred sixty-nine thousand, nine hundred forty-five".

Divisors: 1 5 19 95 787 3935 14953 74765 113213 566065 2151047 10755235 89098631 445493155 1692873989 8464369945