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2871998298988 = 22713431148915971
BaseRepresentation
bin101001110010110000011…
…100000011101101101100
3101011120010111111010200221
4221302300130003231230
5334023323031031423
610035213334501124
7414331536515230
oct51626034035554
911146114433627
102871998298988
11a0800a192215
123a47425047a4
1317aa9c958410
149d010da25c0
154ea92058e5d
hex29cb0703b6c

2871998298988 has 96 divisors (see below), whose sum is σ = 6330646586880. Its totient is φ = 1109586401280.

The previous prime is 2871998298941. The next prime is 2871998299081. The reversal of 2871998298988 is 8898928991782.

It is a junction number, because it is equal to n+sod(n) for n = 2871998298899 and 2871998298908.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179817843 + ... + 179833813.

It is an arithmetic number, because the mean of its divisors is an integer number (65944235280).

Almost surely, 22871998298988 is an apocalyptic number.

2871998298988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2871998298988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3165323293440).

2871998298988 is an abundant number, since it is smaller than the sum of its proper divisors (3458648287892).

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

2871998298988 is a wasteful number, since it uses less digits than its factorization.

2871998298988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27527 (or 27525 counting only the distinct ones).

The product of its digits is 6019743744, while the sum is 88.

The spelling of 2871998298988 in words is "two trillion, eight hundred seventy-one billion, nine hundred ninety-eight million, two hundred ninety-eight thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 13 14 26 28 43 52 86 91 172 182 301 364 559 602 1118 1204 2236 3913 7826 11489 15652 15971 22978 31942 45956 63884 80423 111797 149357 160846 207623 223594 298714 321692 415246 447188 494027 597428 686753 830492 988054 1045499 1373506 1453361 1976108 2090998 2747012 2906722 3458189 4181996 4807271 5813444 6422351 6916378 8927789 9614542 12844702 13832756 17855578 19229084 25689404 35711156 44956457 62494523 89912914 124989046 179825828 183490819 249978092 366981638 733963276 1284435733 2385380647 2568871466 4770761294 5137742932 7890105217 9541522588 15780210434 16697664529 31560420868 33395329058 55230736519 66790658116 102571367821 110461473038 205142735642 220922946076 410285471284 717999574747 1435999149494 2871998298988