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2104554131 = 5935670409
BaseRepresentation
bin111110101110000…
…1111001010010011
312102200002102112022
41331130033022103
513302231213011
6544455522055
7103103262221
oct17534171223
95380072468
102104554131
1198aa69739
124a898932b
13277023a04
1415d713b11
15c4b668db
hex7d70f293

2104554131 has 4 divisors (see below), whose sum is σ = 2140224600. Its totient is φ = 2068883664.

The previous prime is 2104554113. The next prime is 2104554143. The reversal of 2104554131 is 1314554012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2104554131 is a prime.

It is a super-2 number, since 2×21045541312 = 8858296180618330322, which contains 22 as substring.

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 2104554131.

It is not an unprimeable number, because it can be changed into a prime (2104524131) 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, 17835146 + ... + 17835263.

It is an arithmetic number, because the mean of its divisors is an integer number (535056150).

Almost surely, 22104554131 is an apocalyptic number.

2104554131 is a deficient number, since it is larger than the sum of its proper divisors (35670469).

2104554131 is an equidigital number, since it uses as much as digits as its factorization.

2104554131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35670468.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2104554131 is about 45875.4196820040. The cubic root of 2104554131 is about 1281.5041990470.

The spelling of 2104554131 in words is "two billion, one hundred four million, five hundred fifty-four thousand, one hundred thirty-one".

Divisors: 1 59 35670409 2104554131