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228012575790 = 23575231010291
BaseRepresentation
bin1101010001011010011…
…0111100110000101110
3210210112120212222101110
43110112212330300232
512213432204411130
6252425244452450
722321235626116
oct3242646746056
9723476788343
10228012575790
1188777177a8a
1238234b4a126
1318669a20ccc
14b0705c6046
155de7871ab0
hex35169bcc2e

228012575790 has 32 divisors (see below), whose sum is σ = 547303464576. Its totient is φ = 60795211040.

The previous prime is 228012575789. The next prime is 228012575797. The reversal of 228012575790 is 97575210822.

It is a super-3 number, since 3×2280125757903 (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228012575797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279456 + ... + 730835.

It is an arithmetic number, because the mean of its divisors is an integer number (17103233268).

Almost surely, 2228012575790 is an apocalyptic number.

228012575790 is an abundant number, since it is smaller than the sum of its proper divisors (319290888786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228012575790 is a wasteful number, since it uses less digits than its factorization.

228012575790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017824.

The product of its (nonzero) digits is 705600, while the sum is 48.

The spelling of 228012575790 in words is "two hundred twenty-eight billion, twelve million, five hundred seventy-five thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 7523 15046 22569 37615 45138 75230 112845 225690 1010291 2020582 3030873 5051455 6061746 10102910 15154365 30308730 7600419193 15200838386 22801257579 38002095965 45602515158 76004191930 114006287895 228012575790