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905480987412 = 2234113913240349
BaseRepresentation
bin11010010110100101101…
…11110110001100010100
310012120012112020002111010
431023102313312030110
5104313411113044122
61531550000012220
7122263443254451
oct15132267661424
93176175202433
10905480987412
1131a015458861
121275a3901070
1367504173c21
1431b7b2d0828
15188487e2e0c
hexd2d2df6314

905480987412 has 48 divisors (see below), whose sum is σ = 2179891224000. Its totient is φ = 292346883840.

The previous prime is 905480987407. The next prime is 905480987413. The reversal of 905480987412 is 214789084509.

It is a super-2 number, since 2×9054809874122 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905480987413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6551787 + ... + 6688562.

It is an arithmetic number, because the mean of its divisors is an integer number (45414400500).

Almost surely, 2905480987412 is an apocalyptic number.

It is an amenable number.

905480987412 is an abundant number, since it is smaller than the sum of its proper divisors (1274410236588).

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

905480987412 is a wasteful number, since it uses less digits than its factorization.

905480987412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13240536 (or 13240534 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 905480987412 in words is "nine hundred five billion, four hundred eighty million, nine hundred eighty-seven thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 41 82 123 139 164 246 278 417 492 556 834 1668 5699 11398 17097 22796 34194 68388 13240349 26480698 39721047 52961396 79442094 158884188 542854309 1085708618 1628562927 1840408511 2171417236 3257125854 3680817022 5521225533 6514251708 7361634044 11042451066 22084902132 75456748951 150913497902 226370246853 301826995804 452740493706 905480987412