Search a number
-
+
2213031 = 35912503
BaseRepresentation
bin1000011100010010100111
311011102201010
420130102213
51031304111
6115233303
724544662
oct10342247
94142633
102213031
111281757
128a8833
135c63b2
144186d9
152daaa6
hex21c4a7

2213031 has 8 divisors (see below), whose sum is σ = 3000960. Its totient is φ = 1450232.

The previous prime is 2212979. The next prime is 2213033. The reversal of 2213031 is 1303122.

It is a happy number.

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 2213031 - 26 = 2212967 is a prime.

It is a super-2 number, since 2×22130312 = 9795012413922, which contains 22 as substring.

2213031 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2212998 and 2213016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213033) 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, 6075 + ... + 6428.

It is an arithmetic number, because the mean of its divisors is an integer number (375120).

22213031 is an apocalyptic number.

2213031 is a deficient number, since it is larger than the sum of its proper divisors (787929).

2213031 is a wasteful number, since it uses less digits than its factorization.

2213031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12565.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2213031 is about 1487.6259610534. The cubic root of 2213031 is about 130.3154273333.

Adding to 2213031 its reverse (1303122), we get a palindrome (3516153).

Subtracting from 2213031 its reverse (1303122), we obtain a palindrome (909909).

It can be divided in two parts, 22 and 13031, that multiplied together give a palindrome (286682).

The spelling of 2213031 in words is "two million, two hundred thirteen thousand, thirty-one".

Divisors: 1 3 59 177 12503 37509 737677 2213031