Search a number
-
+
31011411 = 329356453
BaseRepresentation
bin111011001001…
…1001001010011
32011100112122210
41312103021103
530414331121
63024403203
7524410164
oct166231123
964315583
1031011411
1116561372
12a476503
13656a462
14419376b
152ac8876
hex1d93253

31011411 has 8 divisors (see below), whose sum is σ = 42774480. Its totient is φ = 19961312.

The previous prime is 31011391. The next prime is 31011437. The reversal of 31011411 is 11411013.

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 31011411 - 26 = 31011347 is a prime.

It is a super-2 number, since 2×310114112 = 1923415224421842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31011011) by changing a digit.

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, 178140 + ... + 178313.

It is an arithmetic number, because the mean of its divisors is an integer number (5346810).

Almost surely, 231011411 is an apocalyptic number.

31011411 is a deficient number, since it is larger than the sum of its proper divisors (11763069).

31011411 is a wasteful number, since it uses less digits than its factorization.

31011411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356485.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 31011411 is about 5568.7890065974. The cubic root of 31011411 is about 314.1766049136.

Adding to 31011411 its reverse (11411013), we get a palindrome (42422424).

The spelling of 31011411 in words is "thirty-one million, eleven thousand, four hundred eleven".

Divisors: 1 3 29 87 356453 1069359 10337137 31011411