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1042223013 = 32138907889
BaseRepresentation
bin111110000111110…
…000111110100101
32200122010102012100
4332013300332211
54113302114023
6251230242313
734553515026
oct7607607645
92618112170
101042223013
11495342637
12251056399
13137c01810
149c5bcc4d
1561771c43
hex3e1f0fa5

1042223013 has 12 divisors (see below), whose sum is σ = 1621235980. Its totient is φ = 641367936.

The previous prime is 1042222997. The next prime is 1042223027. The reversal of 1042223013 is 3103222401.

1042223013 is a `hidden beast` number, since 1 + 0 + 422 + 230 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 117029124 + 925193889 = 10818^2 + 30417^2 .

It is not a de Polignac number, because 1042223013 - 24 = 1042222997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042223713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4453828 + ... + 4454061.

Almost surely, 21042223013 is an apocalyptic number.

1042223013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1042223013 is a deficient number, since it is larger than the sum of its proper divisors (579012967).

1042223013 is a wasteful number, since it uses less digits than its factorization.

1042223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8907908 (or 8907905 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1042223013 is about 32283.4789482175. The cubic root of 1042223013 is about 1013.8807703841.

Adding to 1042223013 its reverse (3103222401), we get a palindrome (4145445414).

The spelling of 1042223013 in words is "one billion, forty-two million, two hundred twenty-three thousand, thirteen".

Divisors: 1 3 9 13 39 117 8907889 26723667 80171001 115802557 347407671 1042223013