Search a number
-
+
13271898 = 232211983
BaseRepresentation
bin110010101000…
…001101011010
3220222021121210
4302220031122
511344200043
61152243550
7220544403
oct62501532
926867553
1013271898
117545412
1245405b6
132998bc3
141a969aa
151272633
hexca835a

13271898 has 8 divisors (see below), whose sum is σ = 26543808. Its totient is φ = 4423964.

The previous prime is 13271893. The next prime is 13271927. The reversal of 13271898 is 89817231.

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

13271898 is an admirable number.

It is a super-2 number, since 2×132718982 = 352286553044808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13271891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105986 + ... + 1105997.

It is an arithmetic number, because the mean of its divisors is an integer number (3317976).

Almost surely, 213271898 is an apocalyptic number.

13271898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13271898 is a wasteful number, since it uses less digits than its factorization.

13271898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211988.

The product of its digits is 24192, while the sum is 39.

The square root of 13271898 is about 3643.0616245131. The cubic root of 13271898 is about 236.7614612874.

The spelling of 13271898 in words is "thirteen million, two hundred seventy-one thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 2211983 4423966 6635949 13271898