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1230904404 = 2233101311251
BaseRepresentation
bin100100101011110…
…0001110001010100
310011210011102102000
41021113201301110
510010102420104
6322050315300
742334341402
oct11127416124
93153142360
101230904404
115818a4774
122a4288b30
13168025002
14b9696472
15730e2639
hex495e1c54

1230904404 has 48 divisors (see below), whose sum is σ = 3194667840. Its totient is φ = 409860000.

The previous prime is 1230904393. The next prime is 1230904459. The reversal of 1230904404 is 4044090321.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103779 + ... + 115029.

It is an arithmetic number, because the mean of its divisors is an integer number (66555580).

Almost surely, 21230904404 is an apocalyptic number.

It is an amenable number.

1230904404 is an abundant number, since it is smaller than the sum of its proper divisors (1963763436).

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

1230904404 is a wasteful number, since it uses less digits than its factorization.

1230904404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12277 (or 12269 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1230904404 is about 35084.2472343358. The cubic root of 1230904404 is about 1071.7038112532.

Adding to 1230904404 its reverse (4044090321), we get a palindrome (5274994725).

The spelling of 1230904404 in words is "one billion, two hundred thirty million, nine hundred four thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 1013 2026 3039 4052 6078 9117 11251 12156 18234 22502 27351 33753 36468 45004 54702 67506 101259 109404 135012 202518 303777 405036 607554 1215108 11397263 22794526 34191789 45589052 68383578 102575367 136767156 205150734 307726101 410301468 615452202 1230904404