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2908768489 = 11249032
BaseRepresentation
bin1010110101100000…
…0100100011101001
321111201100202020021
42231120010203221
521424121042424
61200345000441
7132040060414
oct25530044351
97451322207
102908768489
111262a18900
12692183121
13374820bb3
141d8458b7b
151205724e4
hexad6048e9

2908768489 has 9 divisors (see below), whose sum is σ = 3197893629. Its totient is φ = 2643795660.

The previous prime is 2908768483. The next prime is 2908768507. The reversal of 2908768489 is 9848678092.

The square root of 2908768489 is 53933.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2908768489 - 29 = 2908767977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2908768483) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 590812 + ... + 595714.

Almost surely, 22908768489 is an apocalyptic number.

2908768489 is the 53933-rd square number.

2908768489 is the 26967-th centered octagonal number.

It is an amenable number.

2908768489 is a deficient number, since it is larger than the sum of its proper divisors (289125140).

2908768489 is an frugal number, since it uses more digits than its factorization.

2908768489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9828 (or 4914 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 61.

The cubic root of 2908768489 is about 1427.4789703718.

The spelling of 2908768489 in words is "two billion, nine hundred eight million, seven hundred sixty-eight thousand, four hundred eighty-nine".

Divisors: 1 11 121 4903 53933 593263 24039409 264433499 2908768489