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2135200751 = 6135003291
BaseRepresentation
bin111111101000100…
…1001001111101111
312111210202102210022
41333101021033233
513333102411001
6551512432355
7103624623035
oct17721111757
95453672708
102135200751
119a62a0a22
124b70a86bb
132804940c8
14163810555
15c76bc11b
hex7f4493ef

2135200751 has 4 divisors (see below), whose sum is σ = 2170204104. Its totient is φ = 2100197400.

The previous prime is 2135200723. The next prime is 2135200783. The reversal of 2135200751 is 1570025312.

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 2135200751 - 226 = 2068091887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2135200751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135209751) 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, 17501585 + ... + 17501706.

It is an arithmetic number, because the mean of its divisors is an integer number (542551026).

Almost surely, 22135200751 is an apocalyptic number.

2135200751 is a deficient number, since it is larger than the sum of its proper divisors (35003353).

2135200751 is an equidigital number, since it uses as much as digits as its factorization.

2135200751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35003352.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 2135200751 is about 46208.2325024448. The cubic root of 2135200751 is about 1287.6946890807.

The spelling of 2135200751 in words is "two billion, one hundred thirty-five million, two hundred thousand, seven hundred fifty-one".

Divisors: 1 61 35003291 2135200751