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52513214442 = 231329371933251
BaseRepresentation
bin110000111010000010…
…000000111111101010
312000112201212200201020
4300322002000333222
51330021340330232
640042500233310
73536216646363
oct607202007752
9160481780636
1052513214442
11202a8382287
12a21669b836
134c4b647b70
142782420b6a
151575330e2c
hexc3a080fea

52513214442 has 128 divisors (see below), whose sum is σ = 120827669760. Its totient is φ = 15095808000.

The previous prime is 52513214441. The next prime is 52513214449. The reversal of 52513214442 is 24441231525.

It is not an unprimeable number, because it can be changed into a prime (52513214441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16151317 + ... + 16154567.

It is an arithmetic number, because the mean of its divisors is an integer number (943966170).

Almost surely, 252513214442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52513214442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60413834880).

52513214442 is an abundant number, since it is smaller than the sum of its proper divisors (68314455318).

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

52513214442 is a wasteful number, since it uses less digits than its factorization.

52513214442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3528.

The product of its digits is 38400, while the sum is 33.

Adding to 52513214442 its reverse (24441231525), we get a palindrome (76954445967).

The spelling of 52513214442 in words is "fifty-two billion, five hundred thirteen million, two hundred fourteen thousand, four hundred forty-two".

Divisors: 1 2 3 6 13 26 29 37 39 58 74 78 87 111 174 193 222 377 386 481 579 754 962 1073 1131 1158 1443 2146 2262 2509 2886 3219 3251 5018 5597 6438 6502 7141 7527 9753 11194 13949 14282 15054 16791 19506 21423 27898 33582 41847 42263 42846 72761 83694 84526 92833 94279 120287 126789 145522 185666 188558 207089 218283 240574 253578 278499 282837 360861 414178 436566 556998 565674 621267 627443 721722 1225627 1242534 1254886 1563731 1882329 2451254 2692157 3127462 3488323 3676881 3764658 4691193 5384314 6976646 7353762 8076471 8156759 9382386 10464969 16152942 16313518 18195847 20929938 23215391 24470277 36391694 45348199 46430782 48940554 54587541 69646173 90696398 109175082 136044597 139292346 236546011 272089194 301800083 473092022 603600166 673246339 709638033 905400249 1346492678 1419276066 1810800498 2019739017 4039478034 8752202407 17504404814 26256607221 52513214442