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235424540721 = 3206338039189
BaseRepresentation
bin1101101101000001100…
…1010110100000110001
3211111200010210210211010
43123100121112200301
512324122140300341
6300052540541133
723003016402246
oct3332031264061
9744603723733
10235424540721
1190930019a37
12397632517a9
131927b497586
14b574b3d5cd
1561cd414716
hex36d0656831

235424540721 has 8 divisors (see below), whose sum is σ = 314051552640. Its totient is φ = 156873611312.

The previous prime is 235424540699. The next prime is 235424540789. The reversal of 235424540721 is 127045424532.

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 235424540721 - 26 = 235424540657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 235424540721.

It is not an unprimeable number, because it can be changed into a prime (235424540521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19013406 + ... + 19025783.

It is an arithmetic number, because the mean of its divisors is an integer number (39256444080).

Almost surely, 2235424540721 is an apocalyptic number.

It is an amenable number.

235424540721 is a deficient number, since it is larger than the sum of its proper divisors (78627011919).

235424540721 is a wasteful number, since it uses less digits than its factorization.

235424540721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38041255.

The product of its (nonzero) digits is 268800, while the sum is 39.

The spelling of 235424540721 in words is "two hundred thirty-five billion, four hundred twenty-four million, five hundred forty thousand, seven hundred twenty-one".

Divisors: 1 3 2063 6189 38039189 114117567 78474846907 235424540721