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2142104513 = 7927115247
BaseRepresentation
bin111111110101101…
…1110101111000001
312112021202011222012
41333223132233001
513341334321023
6552320422305
7104040405443
oct17753365701
95467664865
102142104513
119aa18690a
124b9477995
13281a40583
141646ca493
15c80d2978
hex7fadebc1

2142104513 has 4 divisors (see below), whose sum is σ = 2169219840. Its totient is φ = 2114989188.

The previous prime is 2142104507. The next prime is 2142104543. The reversal of 2142104513 is 3154012412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2142104513 - 26 = 2142104449 is a prime.

It is a super-2 number, since 2×21421045132 = 9177223489229934338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142104543) 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, 13557545 + ... + 13557702.

It is an arithmetic number, because the mean of its divisors is an integer number (542304960).

Almost surely, 22142104513 is an apocalyptic number.

It is an amenable number.

2142104513 is a deficient number, since it is larger than the sum of its proper divisors (27115327).

2142104513 is an equidigital number, since it uses as much as digits as its factorization.

2142104513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27115326.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2142104513 is about 46282.8749431148. The cubic root of 2142104513 is about 1289.0810339054.

Adding to 2142104513 its reverse (3154012412), we get a palindrome (5296116925).

The spelling of 2142104513 in words is "two billion, one hundred forty-two million, one hundred four thousand, five hundred thirteen".

Divisors: 1 79 27115247 2142104513