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2159960285 = 5737261739
BaseRepresentation
bin1000000010111110…
…0110000011011101
312120112100100111002
42000233212003131
513410422212120
6554155240045
7104345234210
oct20057460335
95515310432
102159960285
11a0927214a
12503449025
13285652a12
14166c17777
15c995d375
hex80be60dd

2159960285 has 48 divisors (see below), whose sum is σ = 3098551680. Its totient is φ = 1415543040.

The previous prime is 2159960249. The next prime is 2159960303. The reversal of 2159960285 is 5820699512.

It is not a de Polignac number, because 2159960285 - 226 = 2092851421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2922446 + ... + 2923184.

It is an arithmetic number, because the mean of its divisors is an integer number (64553160).

Almost surely, 22159960285 is an apocalyptic number.

It is an amenable number.

2159960285 is a deficient number, since it is larger than the sum of its proper divisors (938591395).

2159960285 is an equidigital number, since it uses as much as digits as its factorization.

2159960285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 2159960285 is about 46475.3728871539. The cubic root of 2159960285 is about 1292.6528914360.

The spelling of 2159960285 in words is "two billion, one hundred fifty-nine million, nine hundred sixty thousand, two hundred eighty-five".

Divisors: 1 5 7 35 37 61 185 259 305 427 739 1295 1369 2135 2257 3695 5173 6845 9583 11285 15799 25865 27343 45079 47915 78995 83509 136715 191401 225395 315553 417545 584563 957005 1011691 1577765 1667923 2922815 5058455 7081837 8339615 11675461 35409185 58377305 61713151 308565755 431992057 2159960285