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2660275171 = 3262181551
BaseRepresentation
bin1001111010010000…
…1001001111100011
320212101202222111001
42132210021033203
520422012301141
61115550532431
7122631652201
oct23644111743
96771688431
102660275171
111145724124
12622b07117
133351b8228
141b3452071
15108839a31
hex9e9093e3

2660275171 has 4 divisors (see below), whose sum is σ = 2660389344. Its totient is φ = 2660161000.

The previous prime is 2660275169. The next prime is 2660275187. The reversal of 2660275171 is 1715720662.

2660275171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(2660275171) divides (2660275171-1)3.

It is a cyclic number.

It is not a de Polignac number, because 2660275171 - 21 = 2660275169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2660275171.

It is not an unprimeable number, because it can be changed into a prime (2660215171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8155 + ... + 73396.

It is an arithmetic number, because the mean of its divisors is an integer number (665097336).

Almost surely, 22660275171 is an apocalyptic number.

2660275171 is the 32621-st heptagonal number.

2660275171 is a deficient number, since it is larger than the sum of its proper divisors (114173).

2660275171 is an equidigital number, since it uses as much as digits as its factorization.

2660275171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114172.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 2660275171 is about 51577.8554323462. The cubic root of 2660275171 is about 1385.6137584803.

The spelling of 2660275171 in words is "two billion, six hundred sixty million, two hundred seventy-five thousand, one hundred seventy-one".

Divisors: 1 32621 81551 2660275171