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856970353 = 1679975147
BaseRepresentation
bin110011000101000…
…101010001110001
32012201112121022201
4303011011101301
53223341022403
6221011503201
730144061561
oct6305052161
92181477281
10856970353
113aa812568
121babb7b01
1310870bb65
1481b58da1
155037c21d
hex33145471

856970353 has 8 divisors (see below), whose sum is σ = 863134272. Its totient is φ = 850819056.

The previous prime is 856970351. The next prime is 856970369. The reversal of 856970353 is 353079658.

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 856970353 - 21 = 856970351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (856970351) by changing a digit.

It is a Zeisel number, with parameters (5, 162).

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, 163926 + ... + 169072.

It is an arithmetic number, because the mean of its divisors is an integer number (107891784).

Almost surely, 2856970353 is an apocalyptic number.

It is an amenable number.

856970353 is a deficient number, since it is larger than the sum of its proper divisors (6163919).

856970353 is a wasteful number, since it uses less digits than its factorization.

856970353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311.

The product of its (nonzero) digits is 680400, while the sum is 46.

The square root of 856970353 is about 29274.0559711154. The cubic root of 856970353 is about 949.8505223727.

The spelling of 856970353 in words is "eight hundred fifty-six million, nine hundred seventy thousand, three hundred fifty-three".

Divisors: 1 167 997 5147 166499 859549 5131559 856970353