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538027320 = 233531612371
BaseRepresentation
bin100000000100011…
…010010100111000
31101111101121201210
4200010122110320
52100213333240
6125215443120
716222104525
oct4004322470
91344347653
10538027320
1125677a986
121302264a0
138760aa7c
145165414c
153237a780
hex2011a538

538027320 has 128 divisors (see below), whose sum is σ = 1694177280. Its totient is φ = 136512000.

The previous prime is 538027319. The next prime is 538027337. The reversal of 538027320 is 23720835.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225735 + ... + 228105.

It is an arithmetic number, because the mean of its divisors is an integer number (13235760).

Almost surely, 2538027320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538027320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847088640).

538027320 is an abundant number, since it is smaller than the sum of its proper divisors (1156149960).

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

538027320 is a wasteful number, since it uses less digits than its factorization.

538027320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477 (or 2473 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 538027320 is about 23195.4159264282. The cubic root of 538027320 is about 813.3324681229.

The spelling of 538027320 in words is "five hundred thirty-eight million, twenty-seven thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 31 40 60 61 62 93 120 122 124 155 183 186 244 248 305 310 366 372 465 488 610 620 732 744 915 930 1220 1240 1464 1830 1860 1891 2371 2440 3660 3720 3782 4742 5673 7113 7320 7564 9455 9484 11346 11855 14226 15128 18910 18968 22692 23710 28365 28452 35565 37820 45384 47420 56730 56904 71130 73501 75640 94840 113460 142260 144631 147002 220503 226920 284520 289262 294004 367505 433893 441006 578524 588008 723155 735010 867786 882012 1102515 1157048 1446310 1470020 1735572 1764024 2169465 2205030 2892620 2940040 3471144 4338930 4410060 4483561 5785240 8677860 8820120 8967122 13450683 17355720 17934244 22417805 26901366 35868488 44835610 53802732 67253415 89671220 107605464 134506830 179342440 269013660 538027320