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13103222004 = 2232641567829
BaseRepresentation
bin11000011010000001…
…10100110011110100
31020211012000122102200
430031000310303310
5203313411101004
610004115304500
7642465356265
oct141500646364
936735018380
1013103222004
1156144776a4
1226582ab130
13130a8a2c02
148c435896c
1551a541239
hex30d034cf4

13103222004 has 36 divisors (see below), whose sum is σ = 33173764260. Its totient is φ = 4360919040.

The previous prime is 13103222003. The next prime is 13103222029. The reversal of 13103222004 is 40022230131.

It can be written as a sum of positive squares in 2 ways, for example, as 12265119504 + 838102500 = 110748^2 + 28950^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×131032220042 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103222003) 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, 260839 + ... + 306990.

Almost surely, 213103222004 is an apocalyptic number.

It is an amenable number.

13103222004 is an abundant number, since it is smaller than the sum of its proper divisors (20070542256).

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

13103222004 is a wasteful number, since it uses less digits than its factorization.

13103222004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568480 (or 568475 counting only the distinct ones).

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

Adding to 13103222004 its reverse (40022230131), we get a palindrome (53125452135).

The spelling of 13103222004 in words is "thirteen billion, one hundred three million, two hundred twenty-two thousand, four".

Divisors: 1 2 3 4 6 9 12 18 36 641 1282 1923 2564 3846 5769 7692 11538 23076 567829 1135658 1703487 2271316 3406974 5110461 6813948 10220922 20441844 363978389 727956778 1091935167 1455913556 2183870334 3275805501 4367740668 6551611002 13103222004