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2742287879 = 19296183983
BaseRepresentation
bin1010001101110011…
…1111111000000111
321002010002122202202
42203130333320013
521104011203004
61132040425115
7124646030252
oct24334777007
97063078682
102742287879
111187a4a521
1264647819b
133491a1766
141c02c0099
15110b39b1e
hexa373fe07

2742287879 has 32 divisors (see below), whose sum is σ = 3074803200. Its totient is φ = 2435045760.

The previous prime is 2742287831. The next prime is 2742287881. The reversal of 2742287879 is 9787822472.

It is a cyclic number.

It is not a de Polignac number, because 2742287879 - 212 = 2742283783 is a prime.

It is a super-2 number, since 2×27422878792 = 15040285622620637282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2742287809) 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 31 ways as a sum of consecutive naturals, for example, 2789222 + ... + 2790204.

It is an arithmetic number, because the mean of its divisors is an integer number (96087600).

Almost surely, 22742287879 is an apocalyptic number.

2742287879 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2742287879 is a deficient number, since it is larger than the sum of its proper divisors (332515321).

2742287879 is a wasteful number, since it uses less digits than its factorization.

2742287879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175.

The product of its digits is 6322176, while the sum is 56.

The square root of 2742287879 is about 52366.8585939619. The cubic root of 2742287879 is about 1399.7087623781.

The spelling of 2742287879 in words is "two billion, seven hundred forty-two million, two hundred eighty-seven thousand, eight hundred seventy-nine".

Divisors: 1 19 29 61 83 551 983 1159 1577 1769 2407 5063 18677 28507 33611 45733 59963 81589 96197 146827 541633 1139297 1550191 1738927 2366081 2789713 4976929 33039613 44955539 94561651 144330941 2742287879