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2140555455 = 32547567899
BaseRepresentation
bin111111110010110…
…0100100010111111
312112011211111001200
41333211210202333
513340440233310
6552223310543
7104021264313
oct17745444277
95464744050
102140555455
119a9318aa5
124b8a4b453
1328161a47c
14164405b43
15c7dc89c0
hex7f9648bf

2140555455 has 12 divisors (see below), whose sum is σ = 3710296200. Its totient is φ = 1141629552.

The previous prime is 2140555441. The next prime is 2140555457. The reversal of 2140555455 is 5545550412.

2140555455 is a `hidden beast` number, since 21 + 40 + 55 + 545 + 5 = 666.

It is not a de Polignac number, because 2140555455 - 28 = 2140555199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140555457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23783905 + ... + 23783994.

It is an arithmetic number, because the mean of its divisors is an integer number (309191350).

Almost surely, 22140555455 is an apocalyptic number.

2140555455 is a deficient number, since it is larger than the sum of its proper divisors (1569740745).

2140555455 is a wasteful number, since it uses less digits than its factorization.

2140555455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47567910 (or 47567907 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The square root of 2140555455 is about 46266.1372388057. The cubic root of 2140555455 is about 1288.7702269690.

The spelling of 2140555455 in words is "two billion, one hundred forty million, five hundred fifty-five thousand, four hundred fifty-five".

Divisors: 1 3 5 9 15 45 47567899 142703697 237839495 428111091 713518485 2140555455