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539055220 = 2251137471409
BaseRepresentation
bin100000001000010…
…101010001110100
31101120022211202011
4200020111101310
52100444231340
6125253454004
716233615364
oct4010252164
91346284664
10539055220
11257312190
12130641304
13878aa8b2
14518409a4
15324d00ea
hex20215474

539055220 has 96 divisors (see below), whose sum is σ = 1296207360. Its totient is φ = 186531840.

The previous prime is 539055199. The next prime is 539055221. The reversal of 539055220 is 22550935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539055221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381876 + ... + 383284.

It is an arithmetic number, because the mean of its divisors is an integer number (13502160).

Almost surely, 2539055220 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 539055220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648103680).

539055220 is an abundant number, since it is smaller than the sum of its proper divisors (757152140).

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

539055220 is a wasteful number, since it uses less digits than its factorization.

539055220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 539055220 is about 23217.5627489192. The cubic root of 539055220 is about 813.8500952456.

It can be divided in two parts, 539055 and 220, that multiplied together give a square (118592100 = 108902).

The spelling of 539055220 in words is "five hundred thirty-nine million, fifty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 37 44 47 55 74 94 110 148 185 188 220 235 370 407 470 517 740 814 940 1034 1409 1628 1739 2035 2068 2585 2818 3478 4070 5170 5636 6956 7045 8140 8695 10340 14090 15499 17390 19129 28180 30998 34780 38258 52133 61996 66223 76516 77495 95645 104266 132446 154990 191290 208532 260665 264892 309980 331115 382580 521330 573463 662230 728453 1042660 1146926 1324460 1456906 2293852 2450251 2867315 2913812 3642265 4900502 5734630 7284530 9801004 11469260 12251255 14569060 24502510 26952761 49005020 53905522 107811044 134763805 269527610 539055220