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2530573812 = 223513474261
BaseRepresentation
bin1001011011010101…
…0111110111110100
320112100201110200000
42112311113313310
520140311330222
61055034551300
7116465344134
oct22665276764
96470643600
102530573812
111089496618
125a7598530
13314375670
141a012cac4
15ec2699ac
hex96d57df4

2530573812 has 144 divisors (see below), whose sum is σ = 7297635072. Its totient is φ = 761892480.

The previous prime is 2530573807. The next prime is 2530573841. The reversal of 2530573812 is 2183750352.

It is a happy number.

2530573812 is a `hidden beast` number, since 2 + 5 + 3 + 0 + 573 + 81 + 2 = 666.

It is a super-2 number, since 2×25305738122 = 12807607635960422688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 591762 + ... + 596022.

Almost surely, 22530573812 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 2530573812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3648817536).

2530573812 is an abundant number, since it is smaller than the sum of its proper divisors (4767061260).

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

2530573812 is a wasteful number, since it uses less digits than its factorization.

2530573812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340 (or 4326 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 2530573812 is about 50304.8090345247. The cubic root of 2530573812 is about 1362.7190792348.

The spelling of 2530573812 in words is "two billion, five hundred thirty million, five hundred seventy-three thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 47 52 54 78 81 94 108 117 141 156 162 188 234 243 282 324 351 423 468 486 564 611 702 846 972 1053 1222 1269 1404 1692 1833 2106 2444 2538 3159 3666 3807 4212 4261 5076 5499 6318 7332 7614 8522 10998 11421 12636 12783 15228 16497 17044 21996 22842 25566 32994 38349 45684 49491 51132 55393 65988 76698 98982 110786 115047 148473 153396 166179 197964 200267 221572 230094 296946 332358 345141 400534 460188 498537 593892 600801 664716 690282 801068 997074 1035423 1201602 1380564 1495611 1802403 1994148 2070846 2403204 2603471 2991222 3604806 4141692 4486833 5206942 5407209 5982444 7209612 7810413 8973666 10413884 10814418 13460499 15620826 16221627 17947332 21628836 23431239 26920998 31241652 32443254 46862478 48664881 53841996 64886508 70293717 93724956 97329762 140587434 194659524 210881151 281174868 421762302 632643453 843524604 1265286906 2530573812