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513102204 = 2232312112179
BaseRepresentation
bin11110100101010…
…101000101111100
31022202111021220100
4132211111011330
52022323232304
6122525321100
715500203536
oct3645250574
91282437810
10513102204
112436a630a
12123a06190
13823c1994
144c206856
15300a5439
hex1e95517c

513102204 has 72 divisors (see below), whose sum is σ = 1345809920. Its totient is φ = 164656800.

The previous prime is 513102203. The next prime is 513102221. The reversal of 513102204 is 402201315.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513102203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234387 + ... + 236565.

Almost surely, 2513102204 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 513102204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672904960).

513102204 is an abundant number, since it is smaller than the sum of its proper divisors (832707716).

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

513102204 is a wasteful number, since it uses less digits than its factorization.

513102204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431 (or 2426 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 513102204 is about 22651.7594018655. The cubic root of 513102204 is about 800.5736531376.

Adding to 513102204 its reverse (402201315), we get a palindrome (915303519).

The spelling of 513102204 in words is "five hundred thirteen million, one hundred two thousand, two hundred four".

Divisors: 1 2 3 4 6 9 12 18 31 36 62 93 124 186 211 279 372 422 558 633 844 1116 1266 1899 2179 2532 3798 4358 6537 6541 7596 8716 13074 13082 19611 19623 26148 26164 39222 39246 58869 67549 78444 78492 117738 135098 202647 235476 270196 405294 459769 607941 810588 919538 1215882 1379307 1839076 2431764 2758614 4137921 5517228 8275842 14252839 16551684 28505678 42758517 57011356 85517034 128275551 171034068 256551102 513102204