Search a number
-
+
215051253555260 = 225311059732731609
BaseRepresentation
bin110000111001011010000101…
…100100111010000000111100
31001012102200212121120210222102
4300321122011210322000330
5211141344431402232020
62041213103152404232
763203640352531133
oct6071320544720074
91035380777523872
10215051253555260
11625817a7291561
1220152459846678
1392cc327b74245
143b167714da91a
1519cde9b162475
hexc3968593a03c

215051253555260 has 48 divisors (see below), whose sum is σ = 466219626136320. Its totient is φ = 83237788408320.

The previous prime is 215051253555233. The next prime is 215051253555293. The reversal of 215051253555260 is 62555352150512.

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, 9795665 + ... + 22935944.

It is an arithmetic number, because the mean of its divisors is an integer number (9712908877840).

Almost surely, 2215051253555260 is an apocalyptic number.

215051253555260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215051253555260 is an abundant number, since it is smaller than the sum of its proper divisors (251168372581060).

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

215051253555260 is a wasteful number, since it uses less digits than its factorization.

215051253555260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32742246 (or 32742244 counting only the distinct ones).

The product of its (nonzero) digits is 2250000, while the sum is 47.

The spelling of 215051253555260 in words is "two hundred fifteen trillion, fifty-one billion, two hundred fifty-three million, five hundred fifty-five thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 10597 21194 42388 52985 105970 211940 328507 657014 1314028 1642535 3285070 6570140 32731609 65463218 130926436 163658045 327316090 654632180 1014679879 2029359758 4058719516 5073399395 10146798790 20293597580 346856860573 693713721146 1387427442292 1734284302865 3468568605730 6937137211460 10752562677763 21505125355526 43010250711052 53762813388815 107525626777630 215051253555260