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2115464790 = 235235357847
BaseRepresentation
bin111111000010111…
…0110111001010110
312110102121202010210
41332011312321112
513313024333130
6545525430250
7103265103555
oct17605667126
95412552123
102115464790
1199614100a
124b056b386
13279373c1a
14160d53d9c
15c5abe5b0
hex7e176e56

2115464790 has 64 divisors (see below), whose sum is σ = 5397912576. Its totient is φ = 529406592.

The previous prime is 2115464759. The next prime is 2115464803. The reversal of 2115464790 is 974645112.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7647 + ... + 65493.

It is an arithmetic number, because the mean of its divisors is an integer number (84342384).

Almost surely, 22115464790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2115464790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2698956288).

2115464790 is an abundant number, since it is smaller than the sum of its proper divisors (3282447786).

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

2115464790 is a wasteful number, since it uses less digits than its factorization.

2115464790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57933.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2115464790 is about 45994.1821320914. The cubic root of 2115464790 is about 1283.7149542909.

The spelling of 2115464790 in words is "two billion, one hundred fifteen million, four hundred sixty-four thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 10 15 23 30 46 53 69 106 115 138 159 230 265 318 345 530 690 795 1219 1590 2438 3657 6095 7314 12190 18285 36570 57847 115694 173541 289235 347082 578470 867705 1330481 1735410 2660962 3065891 3991443 6131782 6652405 7982886 9197673 13304810 15329455 18395346 19957215 30658910 39914430 45988365 70515493 91976730 141030986 211546479 352577465 423092958 705154930 1057732395 2115464790