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513875142 = 23211389241
BaseRepresentation
bin11110101000010…
…001110011000110
31022210221120011200
4132220101303012
52023023001032
6122554043330
715506603154
oct3650216306
91283846150
10513875142
11244084000
12124119546
1382602741
144c3683d4
15301a947c
hex1ea11cc6

513875142 has 96 divisors (see below), whose sum is σ = 1243550880. Its totient is φ = 153331200.

The previous prime is 513875123. The next prime is 513875149. The reversal of 513875142 is 241578315.

513875142 is a `hidden beast` number, since 5 + 138 + 7 + 514 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 513875097 and 513875106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513875149) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2132142 + ... + 2132382.

It is an arithmetic number, because the mean of its divisors is an integer number (12953655).

Almost surely, 2513875142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513875142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621775440).

513875142 is an abundant number, since it is smaller than the sum of its proper divisors (729675738).

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

513875142 is a wasteful number, since it uses less digits than its factorization.

513875142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 346 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 513875142 is about 22668.8143051197. The cubic root of 513875142 is about 800.9754466048.

The spelling of 513875142 in words is "five hundred thirteen million, eight hundred seventy-five thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 89 99 121 178 198 241 242 267 363 482 534 723 726 801 979 1089 1331 1446 1602 1958 2169 2178 2651 2662 2937 3993 4338 5302 5874 7953 7986 8811 10769 11979 15906 17622 21449 21538 23859 23958 29161 32307 42898 47718 58322 64347 64614 87483 96921 118459 128694 174966 193041 193842 235939 236918 262449 320771 355377 386082 471878 524898 641542 707817 710754 962313 1066131 1415634 1924626 2123451 2132262 2595329 2886939 4246902 5190658 5773878 7785987 15571974 23357961 28548619 46715922 57097238 85645857 171291714 256937571 513875142