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2142300387 = 39713952963
BaseRepresentation
bin111111110110000…
…1110100011100011
312112022010010122210
41333230032203203
513341412103022
6552324533203
7104042152503
oct17754164343
95468103583
102142300387
119aa2aaa97
124b9551203
13281aab786
1416473ba03
15c8120a0c
hex7fb0e8e3

2142300387 has 16 divisors (see below), whose sum is σ = 2906664320. Its totient is φ = 1403281152.

The previous prime is 2142300371. The next prime is 2142300401. The reversal of 2142300387 is 7830032412.

It is not a de Polignac number, because 2142300387 - 24 = 2142300371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142300317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13968 + ... + 66930.

It is an arithmetic number, because the mean of its divisors is an integer number (181666520).

Almost surely, 22142300387 is an apocalyptic number.

2142300387 is a deficient number, since it is larger than the sum of its proper divisors (764363933).

2142300387 is a wasteful number, since it uses less digits than its factorization.

2142300387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53202.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 2142300387 is about 46284.9909473903. The cubic root of 2142300387 is about 1289.1203238905.

Adding to 2142300387 its reverse (7830032412), we get a palindrome (9972332799).

The spelling of 2142300387 in words is "two billion, one hundred forty-two million, three hundred thousand, three hundred eighty-seven".

Divisors: 1 3 97 139 291 417 13483 40449 52963 158889 5137411 7361857 15412233 22085571 714100129 2142300387