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2123045137 = 29312361563
BaseRepresentation
bin111111010001011…
…0001100100010001
312110221212212102101
41332202301210101
513321444421022
6550400120401
7103416404653
oct17642614421
95427785371
102123045137
1199a449264
124b3006101
1327aac9335
14161d686d3
15c65ba627
hex7e8b1911

2123045137 has 8 divisors (see below), whose sum is σ = 2267101440. Its totient is φ = 1983712080.

The previous prime is 2123045083. The next prime is 2123045143. The reversal of 2123045137 is 7315403212.

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 2123045137 - 215 = 2123012369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123045537) 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, 1179883 + ... + 1181680.

It is an arithmetic number, because the mean of its divisors is an integer number (283387680).

Almost surely, 22123045137 is an apocalyptic number.

It is an amenable number.

2123045137 is a deficient number, since it is larger than the sum of its proper divisors (144056303).

2123045137 is a wasteful number, since it uses less digits than its factorization.

2123045137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361623.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 2123045137 is about 46076.5139414865. The cubic root of 2123045137 is about 1285.2464388283.

Adding to 2123045137 its reverse (7315403212), we get a palindrome (9438448349).

The spelling of 2123045137 in words is "two billion, one hundred twenty-three million, forty-five thousand, one hundred thirty-seven".

Divisors: 1 29 31 899 2361563 68485327 73208453 2123045137