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2113145207 = 41208124767
BaseRepresentation
bin111110111110100…
…0000100101110111
312110021020220021022
41331331000211313
513311431121312
6545404011355
7103236303125
oct17575004567
95407226238
102113145207
119948a72a8
124ab830b5b
13278a411a4
1416090c915
15c57b2172
hex7df40977

2113145207 has 8 divisors (see below), whose sum is σ = 2165812992. Its totient is φ = 2060531200.

The previous prime is 2113145201. The next prime is 2113145231. The reversal of 2113145207 is 7025413112.

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

It is a cyclic number.

It is not a de Polignac number, because 2113145207 - 26 = 2113145143 is a prime.

It is a super-3 number, since 3×21131452073 (a number of 29 digits) contains 333 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 (2113145201) 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 7 ways as a sum of consecutive naturals, for example, 72938 + ... + 97704.

It is an arithmetic number, because the mean of its divisors is an integer number (270726624).

Almost surely, 22113145207 is an apocalyptic number.

2113145207 is a deficient number, since it is larger than the sum of its proper divisors (52667785).

2113145207 is a wasteful number, since it uses less digits than its factorization.

2113145207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26889.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 2113145207 is about 45968.9591681169. The cubic root of 2113145207 is about 1283.2455897657.

Adding to 2113145207 its reverse (7025413112), we get a palindrome (9138558319).

The spelling of 2113145207 in words is "two billion, one hundred thirteen million, one hundred forty-five thousand, two hundred seven".

Divisors: 1 41 2081 24767 85321 1015447 51540127 2113145207