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2168553255260 = 225715489666109
BaseRepresentation
bin11111100011100111110…
…110001011000101011100
321200022102012112101101212
4133203213312023011130
5241012144113132020
64340115234123552
7312446525351360
oct37434766130534
97608365471355
102168553255260
11766750862247
122b03441205b8
13129655854182
1476d5c3272a0
153b6207eccc5
hex1f8e7d8b15c

2168553255260 has 24 divisors (see below), whose sum is σ = 5204527812960. Its totient is φ = 743503973184.

The previous prime is 2168553255259. The next prime is 2168553255343. The reversal of 2168553255260 is 625523558612.

It is a junction number, because it is equal to n+sod(n) for n = 2168553255199 and 2168553255208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7744832915 + ... + 7744833194.

It is an arithmetic number, because the mean of its divisors is an integer number (216855325540).

Almost surely, 22168553255260 is an apocalyptic number.

2168553255260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2168553255260 is an abundant number, since it is smaller than the sum of its proper divisors (3035974557700).

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

2168553255260 is a wasteful number, since it uses less digits than its factorization.

2168553255260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15489666125 (or 15489666123 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 50.

The spelling of 2168553255260 in words is "two trillion, one hundred sixty-eight billion, five hundred fifty-three million, two hundred fifty-five thousand, two hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 15489666109 30979332218 61958664436 77448330545 108427662763 154896661090 216855325526 309793322180 433710651052 542138313815 1084276627630 2168553255260