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1213300404 = 2233171934781
BaseRepresentation
bin100100001010001…
…0111111010110100
310010120001001021000
41020110113322310
54441101103104
6320221123300
742031611651
oct11024277264
93116031230
101213300404
11572970608
1229a3b9530
131644a0344
14b71d2c28
15717b6639
hex48517eb4

1213300404 has 96 divisors (see below), whose sum is σ = 3506025600. Its totient is φ = 360599040.

The previous prime is 1213300397. The next prime is 1213300409. The reversal of 1213300404 is 4040033121.

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 (1213300409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17494 + ... + 52274.

It is an arithmetic number, because the mean of its divisors is an integer number (36521100).

Almost surely, 21213300404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213300404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1753012800).

1213300404 is an abundant number, since it is smaller than the sum of its proper divisors (2292725196).

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

1213300404 is a wasteful number, since it uses less digits than its factorization.

1213300404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34830 (or 34822 counting only the distinct ones).

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

The square root of 1213300404 is about 34832.4619284942. The cubic root of 1213300404 is about 1066.5702051225.

Adding to 1213300404 its reverse (4040033121), we get a palindrome (5253333525).

The spelling of 1213300404 in words is "one billion, two hundred thirteen million, three hundred thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 17 18 19 27 34 36 38 51 54 57 68 76 102 108 114 153 171 204 228 306 323 342 459 513 612 646 684 918 969 1026 1292 1836 1938 2052 2907 3876 5814 8721 11628 17442 34781 34884 69562 104343 139124 208686 313029 417372 591277 626058 660839 939087 1182554 1252116 1321678 1773831 1878174 1982517 2365108 2643356 3547662 3756348 3965034 5321493 5947551 7095324 7930068 10642986 11234263 11895102 15964479 17842653 21285972 22468526 23790204 31928958 33702789 35685306 44937052 63857916 67405578 71370612 101108367 134811156 202216734 303325101 404433468 606650202 1213300404