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252313205301212 = 2211137369131133933
BaseRepresentation
bin111001010111101000111110…
…111110010101111111011100
31020002100220111002200000012112
4321113220332332111333130
5231032344421024114322
62252343030352253152
7104101012303500656
oct7127507676257734
91202326432600175
10252313205301212
117343847a6677a0
122436bba5b411b8
13aaa3057b38a03
14464404a94b6d6
151e283a38425e2
hexe57a3ef95fdc

252313205301212 has 48 divisors (see below), whose sum is σ = 485218395924192. Its totient is φ = 113847498516480.

The previous prime is 252313205301191. The next prime is 252313205301271. The reversal of 252313205301212 is 212103502313252.

It is a happy number.

It is a congruent number.

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, 221944598 + ... + 223078530.

It is an arithmetic number, because the mean of its divisors is an integer number (10108716581754).

Almost surely, 2252313205301212 is an apocalyptic number.

252313205301212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

252313205301212 is a deficient number, since it is larger than the sum of its proper divisors (232905190622980).

252313205301212 is a wasteful number, since it uses less digits than its factorization.

252313205301212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170998 (or 1170996 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 252313205301212 its reverse (212103502313252), we get a palindrome (464416707614464).

The spelling of 252313205301212 in words is "two hundred fifty-two trillion, three hundred thirteen billion, two hundred five million, three hundred one thousand, two hundred twelve".

Divisors: 1 2 4 11 22 44 137 274 548 1507 3014 6028 36913 73826 147652 406043 812086 1133933 1624172 2267866 4535732 5057081 10114162 12473263 20228324 24946526 49893052 55627891 111255782 155348821 222511564 310697642 621395284 1708837031 3417674062 6835348124 41856868829 83713737658 167427475316 460425557119 920851114238 1841702228476 5734391029573 11468782059146 22937564118292 63078301325303 126156602650606 252313205301212