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2102142133 = 71323100463
BaseRepresentation
bin111110101001100…
…0010010010110101
312102111112212220001
41331103002102311
513301122022013
6544332111301
7103043625160
oct17523022265
95374485801
102102142133
11989671553
124a8005531
1327668abb0
1415d286ad7
15c483bddd
hex7d4c24b5

2102142133 has 8 divisors (see below), whose sum is σ = 2587251968. Its totient is φ = 1663233264.

The previous prime is 2102142131. The next prime is 2102142179. The reversal of 2102142133 is 3312412012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2102142133 - 21 = 2102142131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102142133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102142131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11550141 + ... + 11550322.

It is an arithmetic number, because the mean of its divisors is an integer number (323406496).

Almost surely, 22102142133 is an apocalyptic number.

It is an amenable number.

2102142133 is a deficient number, since it is larger than the sum of its proper divisors (485109835).

2102142133 is a wasteful number, since it uses less digits than its factorization.

2102142133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23100483.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2102142133 is about 45849.1235794099. The cubic root of 2102142133 is about 1281.0144409685.

Adding to 2102142133 its reverse (3312412012), we get a palindrome (5414554145).

It can be divided in two parts, 2102142 and 133, that added together give a triangular number (2102275 = T2050).

The spelling of 2102142133 in words is "two billion, one hundred two million, one hundred forty-two thousand, one hundred thirty-three".

Divisors: 1 7 13 91 23100463 161703241 300306019 2102142133