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705020507 = 3122979901
BaseRepresentation
bin101010000001011…
…100001001011011
31211010121202022122
4222001130021123
52420441124012
6153543011455
723320401242
oct5201341133
91733552278
10705020507
11331a69384
12178139b8b
13b30a95c9
14698c3959
1541d64e72
hex2a05c25b

705020507 has 8 divisors (see below), whose sum is σ = 728153472. Its totient is φ = 681912000.

The previous prime is 705020473. The next prime is 705020551.

705020507 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 705020507 - 26 = 705020443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705020567) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 66257 + ... + 76157.

It is an arithmetic number, because the mean of its divisors is an integer number (91019184).

Almost surely, 2705020507 is an apocalyptic number.

705020507 is a deficient number, since it is larger than the sum of its proper divisors (23132965).

705020507 is a wasteful number, since it uses less digits than its factorization.

705020507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12229.

The product of its (nonzero) digits is 2450, while the sum is 26.

The square root of 705020507 is about 26552.2222610462. Note that the first 4 decimals coincide. The cubic root of 705020507 is about 890.0216747657.

The spelling of 705020507 in words is "seven hundred five million, twenty thousand, five hundred seven".

Divisors: 1 31 2297 9901 71207 306931 22742597 705020507