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897943013 = 11531540211
BaseRepresentation
bin110101100001011…
…000010111100101
32022120122020020122
4311201120113211
53314333134023
6225034011325
731152250442
oct6541302745
92276566218
10897943013
11420957970
12210876b45
13114056336
14873829c9
1553c722c8
hex358585e5

897943013 has 8 divisors (see below), whose sum is σ = 998057376. Its totient is φ = 800909200.

The previous prime is 897943003. The next prime is 897943031. The reversal of 897943013 is 310349798.

It is a happy number.

897943013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 897943013 - 26 = 897942949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897943003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769523 + ... + 770688.

It is an arithmetic number, because the mean of its divisors is an integer number (124757172).

Almost surely, 2897943013 is an apocalyptic number.

It is an amenable number.

897943013 is a deficient number, since it is larger than the sum of its proper divisors (100114363).

897943013 is a wasteful number, since it uses less digits than its factorization.

897943013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540275.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 897943013 is about 29965.6972720476. The cubic root of 897943013 is about 964.7532682855.

The spelling of 897943013 in words is "eight hundred ninety-seven million, nine hundred forty-three thousand, thirteen".

Divisors: 1 11 53 583 1540211 16942321 81631183 897943013