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2144210525 = 52139617039
BaseRepresentation
bin111111111001110…
…0000111001011101
312112102201011212122
41333303200321131
513342404214100
6552433512325
7104064326432
oct17763407135
95472634778
102144210525
11a00395116
124ba1126a5
132822ca032
14164ab7b89
15c839b985
hex7fce0e5d

2144210525 has 12 divisors (see below), whose sum is σ = 2677953600. Its totient is φ = 1703024880.

The previous prime is 2144210513. The next prime is 2144210533. The reversal of 2144210525 is 5250124412.

It is not a de Polignac number, because 2144210525 - 212 = 2144206429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2144210494 and 2144210503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305045 + ... + 311994.

It is an arithmetic number, because the mean of its divisors is an integer number (223162800).

Almost surely, 22144210525 is an apocalyptic number.

2144210525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2144210525 is a deficient number, since it is larger than the sum of its proper divisors (533743075).

2144210525 is a wasteful number, since it uses less digits than its factorization.

2144210525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617188 (or 617183 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2144210525 is about 46305.6208791114. The cubic root of 2144210525 is about 1289.5033492660.

Adding to 2144210525 its reverse (5250124412), we get a palindrome (7394334937).

The spelling of 2144210525 in words is "two billion, one hundred forty-four million, two hundred ten thousand, five hundred twenty-five".

Divisors: 1 5 25 139 695 3475 617039 3085195 15425975 85768421 428842105 2144210525