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3440212031 = 27191265249
BaseRepresentation
bin1100110100001101…
…0111100000111111
322212202100212201102
43031003113200333
524021143241111
61325211403315
7151152214454
oct31503274077
98782325642
103440212031
111505a01243
1280015353b
1342a965029
14248c7782b
1515204c13b
hexcd0d783f

3440212031 has 4 divisors (see below), whose sum is σ = 3441480000. Its totient is φ = 3438944064.

The previous prime is 3440212019. The next prime is 3440212037. The reversal of 3440212031 is 1302120443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1302120443 = 13100163111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3440212031 is a prime.

It is a super-2 number, since 2×34402120312 = 23670117636474289922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3440211994 and 3440212012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440212037) 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, 629906 + ... + 635343.

It is an arithmetic number, because the mean of its divisors is an integer number (860370000).

Almost surely, 23440212031 is an apocalyptic number.

3440212031 is a deficient number, since it is larger than the sum of its proper divisors (1267969).

3440212031 is a wasteful number, since it uses less digits than its factorization.

3440212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267968.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3440212031 is about 58653.3207158810. The cubic root of 3440212031 is about 1509.5994772698.

Adding to 3440212031 its reverse (1302120443), we get a palindrome (4742332474).

The spelling of 3440212031 in words is "three billion, four hundred forty million, two hundred twelve thousand, thirty-one".

Divisors: 1 2719 1265249 3440212031