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2126705460 = 2235113222281
BaseRepresentation
bin111111011000010…
…1111001100110100
312111012202211102220
41332300233030310
513323414033320
6551010402340
7103462461315
oct17660571464
95435684386
102126705460
119a1519320
124b42903b0
1327b7ab3c9
1416263c60c
15c6a8ee40
hex7ec2f334

2126705460 has 48 divisors (see below), whose sum is σ = 6496120512. Its totient is φ = 515564800.

The previous prime is 2126705443. The next prime is 2126705467. The reversal of 2126705460 is 645076212.

It is a super-2 number, since 2×21267054602 = 9045752227187623200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126705467) 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, 1610481 + ... + 1611800.

It is an arithmetic number, because the mean of its divisors is an integer number (135335844).

Almost surely, 22126705460 is an apocalyptic number.

2126705460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2126705460 is an abundant number, since it is smaller than the sum of its proper divisors (4369415052).

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

2126705460 is a wasteful number, since it uses less digits than its factorization.

2126705460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222304 (or 3222302 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 2126705460 is about 46116.2168873380. The cubic root of 2126705460 is about 1285.9846420175.

It can be divided in two parts, 212670 and 5460, that added together give a triangular number (218130 = T660).

The spelling of 2126705460 in words is "two billion, one hundred twenty-six million, seven hundred five thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 3222281 6444562 9666843 12889124 16111405 19333686 32222810 35445091 38667372 48334215 64445620 70890182 96668430 106335273 141780364 177225455 193336860 212670546 354450910 425341092 531676365 708901820 1063352730 2126705460