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2380428977 = 8926746393
BaseRepresentation
bin1000110111100010…
…0111011010110001
320010220012022200012
42031320213122301
514333342211402
61032112504305
7112663212113
oct21570473261
96126168605
102380428977
111011765583
1256524b095
132bc225874
141882073b3
15ddeac452
hex8de276b1

2380428977 has 4 divisors (see below), whose sum is σ = 2407175460. Its totient is φ = 2353682496.

The previous prime is 2380428971. The next prime is 2380428991. The reversal of 2380428977 is 7798240832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1402053136 + 978375841 = 37444^2 + 31279^2 .

It is a cyclic number.

It is not a de Polignac number, because 2380428977 - 26 = 2380428913 is a prime.

It is a super-2 number, since 2×23804289772 = 11332884229082533058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2380428971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13373108 + ... + 13373285.

It is an arithmetic number, because the mean of its divisors is an integer number (601793865).

Almost surely, 22380428977 is an apocalyptic number.

It is an amenable number.

2380428977 is a deficient number, since it is larger than the sum of its proper divisors (26746483).

2380428977 is an equidigital number, since it uses as much as digits as its factorization.

2380428977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26746482.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 2380428977 is about 48789.6400581107. The cubic root of 2380428977 is about 1335.2166606326.

The spelling of 2380428977 in words is "two billion, three hundred eighty million, four hundred twenty-eight thousand, nine hundred seventy-seven".

Divisors: 1 89 26746393 2380428977