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2026868505 = 3531101103419
BaseRepresentation
bin111100011001111…
…1000111100011001
312020020220120212220
41320303320330121
513122334243010
6533042454253
7101141045424
oct17063707431
95206816786
102026868505
11950129342
12486964389
13263bc3b9c
141532909bb
15bce1d970
hex78cf8f19

2026868505 has 64 divisors (see below), whose sum is σ = 3421716480. Its totient is φ = 1023264000.

The previous prime is 2026868489. The next prime is 2026868509. The reversal of 2026868505 is 5058686202.

It is not a de Polignac number, because 2026868505 - 24 = 2026868489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2026868509) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4837186 + ... + 4837604.

It is an arithmetic number, because the mean of its divisors is an integer number (53464320).

Almost surely, 22026868505 is an apocalyptic number.

It is an amenable number.

2026868505 is a deficient number, since it is larger than the sum of its proper divisors (1394847975).

2026868505 is a wasteful number, since it uses less digits than its factorization.

2026868505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662.

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 2026868505 is about 45020.7563796967. The cubic root of 2026868505 is about 1265.5380037992.

The spelling of 2026868505 in words is "two billion, twenty-six million, eight hundred sixty-eight thousand, five hundred five".

Divisors: 1 3 5 15 31 93 101 103 155 303 309 419 465 505 515 1257 1515 1545 2095 3131 3193 6285 9393 9579 10403 12989 15655 15965 31209 38967 42319 43157 46965 47895 52015 64945 126957 129471 156045 194835 211595 215785 322493 634785 647355 967479 1311889 1337867 1612465 3935667 4013601 4358857 4837395 6559445 6689335 13076571 19678335 20068005 21794285 65382855 135124567 405373701 675622835 2026868505