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505000515252 = 22342083376271
BaseRepresentation
bin1110101100101000110…
…00000101011010110100
31210021111100120012121010
413112110120011122310
531233220112442002
61023554413352220
751325245361122
oct7262430053264
91707440505533
10505000515252
11185195697632
1281a57798670
133881012a03c
141a6293ba912
15d209b3c46c
hex75946056b4

505000515252 has 12 divisors (see below), whose sum is σ = 1178334535616. Its totient is φ = 168333505080.

The previous prime is 505000515191. The next prime is 505000515287. The reversal of 505000515252 is 252515000505.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21041688124 + ... + 21041688147.

Almost surely, 2505000515252 is an apocalyptic number.

It is an amenable number.

505000515252 is an abundant number, since it is smaller than the sum of its proper divisors (673334020364).

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

505000515252 is a wasteful number, since it uses less digits than its factorization.

505000515252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42083376278 (or 42083376276 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 30.

Adding to 505000515252 its reverse (252515000505), we get a palindrome (757515515757).

The spelling of 505000515252 in words is "five hundred five billion, five hundred fifteen thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 42083376271 84166752542 126250128813 168333505084 252500257626 505000515252