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2102281301 = 20111045391
BaseRepresentation
bin111110101001110…
…0100010001010101
312102111210221210102
41331103210101111
513301141000201
6544335103445
7103045045001
oct17523442125
95374727712
102102281301
1198975706a
124a8071b85
13276709343
1415d2c1701
15c486826b
hex7d4e4455

2102281301 has 4 divisors (see below), whose sum is σ = 2103328704. Its totient is φ = 2101233900.

The previous prime is 2102281289. The next prime is 2102281417. The reversal of 2102281301 is 1031822012.

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 a de Polignac number, because none of the positive numbers 2k-2102281301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102281501) 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, 520685 + ... + 524706.

It is an arithmetic number, because the mean of its divisors is an integer number (525832176).

Almost surely, 22102281301 is an apocalyptic number.

It is an amenable number.

2102281301 is a deficient number, since it is larger than the sum of its proper divisors (1047403).

2102281301 is a wasteful number, since it uses less digits than its factorization.

2102281301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047402.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 2102281301 is about 45850.6412277953. The cubic root of 2102281301 is about 1281.0427093209.

The spelling of 2102281301 in words is "two billion, one hundred two million, two hundred eighty-one thousand, three hundred one".

Divisors: 1 2011 1045391 2102281301