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487145252 = 221197157727
BaseRepresentation
bin11101000010010…
…011111100100100
31020221122112122202
4131002103330210
51444202122002
6120201114032
715033444356
oct3502237444
91227575582
10487145252
1122aa87490
12117188918
1379c04039
14489ab0d6
152cb79502
hex1d093f24

487145252 has 48 divisors (see below), whose sum is σ = 946877568. Its totient is φ = 217451520.

The previous prime is 487145249. The next prime is 487145261. The reversal of 487145252 is 252541784.

It is a super-2 number, since 2×4871452522 = 474620993092287008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669713 + ... + 670439.

It is an arithmetic number, because the mean of its divisors is an integer number (19726616).

Almost surely, 2487145252 is an apocalyptic number.

It is an amenable number.

487145252 is a deficient number, since it is larger than the sum of its proper divisors (459732316).

487145252 is a wasteful number, since it uses less digits than its factorization.

487145252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996 (or 994 counting only the distinct ones).

The product of its digits is 89600, while the sum is 38.

The square root of 487145252 is about 22071.3672435579. The cubic root of 487145252 is about 786.8395077302.

The spelling of 487145252 in words is "four hundred eighty-seven million, one hundred forty-five thousand, two hundred fifty-two".

Divisors: 1 2 4 11 22 44 97 157 194 314 388 628 727 1067 1454 1727 2134 2908 3454 4268 6908 7997 15229 15994 30458 31988 60916 70519 114139 141038 167519 228278 282076 335038 456556 670076 775709 1255529 1551418 2511058 3102836 5022116 11071483 22142966 44285932 121786313 243572626 487145252