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2891325190 = 2513197116487
BaseRepresentation
bin1010110001010110…
…0001111100000110
321110111112112112011
42230111201330012
521410134401230
61154523044434
7131435600335
oct25425417406
97414475464
102891325190
111254094456
1268837071a
13371024410
141d5dd7d1c
1511dc78e2a
hexac561f06

2891325190 has 64 divisors (see below), whose sum is σ = 5983165440. Its totient is φ = 997073280.

The previous prime is 2891325163. The next prime is 2891325197. The reversal of 2891325190 is 915231982.

It is a super-2 number, since 2×28913251902 = 16719522708657072200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2891325197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167127 + ... + 183613.

It is an arithmetic number, because the mean of its divisors is an integer number (93486960).

Almost surely, 22891325190 is an apocalyptic number.

2891325190 is an abundant number, since it is smaller than the sum of its proper divisors (3091840250).

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

2891325190 is a wasteful number, since it uses less digits than its factorization.

2891325190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16597.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 2891325190 is about 53771.0441594730. The cubic root of 2891325190 is about 1424.6198128058.

The spelling of 2891325190 in words is "two billion, eight hundred ninety-one million, three hundred twenty-five thousand, one hundred ninety".

Divisors: 1 2 5 10 13 19 26 38 65 71 95 130 142 190 247 355 494 710 923 1235 1349 1846 2470 2698 4615 6745 9230 13490 16487 17537 32974 35074 82435 87685 164870 175370 214331 313253 428662 626506 1071655 1170577 1566265 2143310 2341154 3132530 4072289 5852885 8144578 11705770 15217501 20361445 22240963 30435002 40722890 44481926 76087505 111204815 152175010 222409630 289132519 578265038 1445662595 2891325190