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13853018 = 213949831
BaseRepresentation
bin110100110110…
…000101011010
3222001210202202
4310312011122
512021244033
61212530202
7225514544
oct64660532
928053682
1013853018
117901a83
124780962
132b4056a
141ba8694
1513398e8
hexd3615a

13853018 has 8 divisors (see below), whose sum is σ = 20929440. Its totient is φ = 6876540.

The previous prime is 13853017. The next prime is 13853027. The reversal of 13853018 is 81035831.

13853018 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 super-2 number, since 2×138530182 = 383812215416648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13853017) 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, 24638 + ... + 25193.

It is an arithmetic number, because the mean of its divisors is an integer number (2616180).

Almost surely, 213853018 is an apocalyptic number.

13853018 is a deficient number, since it is larger than the sum of its proper divisors (7076422).

13853018 is a wasteful number, since it uses less digits than its factorization.

13853018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49972.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 13853018 is about 3721.9642663518. The cubic root of 13853018 is about 240.1678108780.

Adding to 13853018 its reverse (81035831), we get a palindrome (94888849).

The spelling of 13853018 in words is "thirteen million, eight hundred fifty-three thousand, eighteen".

Divisors: 1 2 139 278 49831 99662 6926509 13853018