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13850845 = 52770169
BaseRepresentation
bin110100110101…
…100011011101
3222001200210021
4310311203131
512021211340
61212512141
7225505321
oct64654335
928050707
1013850845
117900388
12477b651
132b3c588
141ba7981
151338e4a
hexd358dd

13850845 has 4 divisors (see below), whose sum is σ = 16621020. Its totient is φ = 11080672.

The previous prime is 13850827. The next prime is 13850849. The reversal of 13850845 is 54805831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54805831 = 285719183.

It can be written as a sum of positive squares in 2 ways, for example, as 3437316 + 10413529 = 1854^2 + 3227^2 .

It is a cyclic number.

It is not a de Polignac number, because 13850845 - 27 = 13850717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13850845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13850849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385080 + ... + 1385089.

It is an arithmetic number, because the mean of its divisors is an integer number (4155255).

Almost surely, 213850845 is an apocalyptic number.

It is an amenable number.

13850845 is a deficient number, since it is larger than the sum of its proper divisors (2770175).

13850845 is an equidigital number, since it uses as much as digits as its factorization.

13850845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770174.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 13850845 is about 3721.6723391508. The cubic root of 13850845 is about 240.1552525570.

The spelling of 13850845 in words is "thirteen million, eight hundred fifty thousand, eight hundred forty-five".

Divisors: 1 5 2770169 13850845