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2301378139 = 19511179589
BaseRepresentation
bin1000100100101100…
…0011111001011011
312221101110010022101
42021023003321123
514203123100024
61020210304231
7111013251154
oct21113037133
95841403271
102301378139
11a81082505
12542888077
132a8a38518
1417b90a92b
15d7094c44
hex892c3e5b

2301378139 has 4 divisors (see below), whose sum is σ = 2302559680. Its totient is φ = 2300196600.

The previous prime is 2301378073. The next prime is 2301378161. The reversal of 2301378139 is 9318731032.

2301378139 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.

It is a cyclic number.

It is not a de Polignac number, because 2301378139 - 29 = 2301377627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2301378098 and 2301378107.

It is not an unprimeable number, because it can be changed into a prime (2301378199) 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, 587844 + ... + 591745.

It is an arithmetic number, because the mean of its divisors is an integer number (575639920).

Almost surely, 22301378139 is an apocalyptic number.

2301378139 is a deficient number, since it is larger than the sum of its proper divisors (1181541).

2301378139 is a wasteful number, since it uses less digits than its factorization.

2301378139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181540.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 2301378139 is about 47972.6811737681. The cubic root of 2301378139 is about 1320.2697143608.

The spelling of 2301378139 in words is "two billion, three hundred one million, three hundred seventy-eight thousand, one hundred thirty-nine".

Divisors: 1 1951 1179589 2301378139