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538217230 = 25103522541
BaseRepresentation
bin100000000101001…
…000101100001110
31101111202021020111
4200011020230032
52100240422410
6125223510234
716223525305
oct4005105416
91344667214
10538217230
1125689a631
121302b837a
1387676345
14516a343c
15323b6b8a
hex20148b0e

538217230 has 16 divisors (see below), whose sum is σ = 978198624. Its totient is φ = 213196320.

The previous prime is 538217219. The next prime is 538217249. The reversal of 538217230 is 32712835.

It is a junction number, because it is equal to n+sod(n) for n = 538217192 and 538217201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260241 + ... + 262300.

It is an arithmetic number, because the mean of its divisors is an integer number (61137414).

Almost surely, 2538217230 is an apocalyptic number.

538217230 is a deficient number, since it is larger than the sum of its proper divisors (439981394).

538217230 is a wasteful number, since it uses less digits than its factorization.

538217230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522651.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 538217230 is about 23199.5092620512. The cubic root of 538217230 is about 813.4281521111.

The spelling of 538217230 in words is "five hundred thirty-eight million, two hundred seventeen thousand, two hundred thirty".

Divisors: 1 2 5 10 103 206 515 1030 522541 1045082 2612705 5225410 53821723 107643446 269108615 538217230