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215704542133 = 1371779188499
BaseRepresentation
bin1100100011100011111…
…1100001101110110101
3202121202211011002022001
43020320333201232311
512013230330322013
6243032052535301
721404234233063
oct3107077415665
9677684132261
10215704542133
1183530655143
123597b021531
1317457b07b62
14a623b03033
155927056ddd
hex3238fe1bb5

215704542133 has 8 divisors (see below), whose sum is σ = 217293696000. Its totient is φ = 214115601120.

The previous prime is 215704542101. The next prime is 215704542203. The reversal of 215704542133 is 331245407512.

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 215704542133 - 25 = 215704542101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215704542092 and 215704542101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215704546133) 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, 2393118 + ... + 2481616.

It is an arithmetic number, because the mean of its divisors is an integer number (27161712000).

Almost surely, 2215704542133 is an apocalyptic number.

It is an amenable number.

215704542133 is a deficient number, since it is larger than the sum of its proper divisors (1589153867).

215704542133 is a wasteful number, since it uses less digits than its factorization.

215704542133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106427.

The product of its (nonzero) digits is 100800, while the sum is 37.

Adding to 215704542133 its reverse (331245407512), we get a palindrome (546949949645).

The spelling of 215704542133 in words is "two hundred fifteen billion, seven hundred four million, five hundred forty-two thousand, one hundred thirty-three".

Divisors: 1 137 17791 88499 2437367 12124363 1574485709 215704542133