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513542012 = 22128385503
BaseRepresentation
bin11110100111000…
…000011101111100
31022210022122012112
4132213000131330
52022431321022
6122542553152
715504015014
oct3647003574
91283278175
10513542012
11243976795
12123b987b8
1382516c19
144c2bcc44
15301408e2
hex1e9c077c

513542012 has 6 divisors (see below), whose sum is σ = 898698528. Its totient is φ = 256771004.

The previous prime is 513541969. The next prime is 513542027. The reversal of 513542012 is 210245315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64192748 + ... + 64192755.

It is an arithmetic number, because the mean of its divisors is an integer number (149783088).

Almost surely, 2513542012 is an apocalyptic number.

It is an amenable number.

513542012 is a deficient number, since it is larger than the sum of its proper divisors (385156516).

513542012 is a wasteful number, since it uses less digits than its factorization.

513542012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128385507 (or 128385505 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 513542012 is about 22661.4653542087. The cubic root of 513542012 is about 800.8023263216.

Adding to 513542012 its reverse (210245315), we get a palindrome (723787327).

The spelling of 513542012 in words is "five hundred thirteen million, five hundred forty-two thousand, twelve".

Divisors: 1 2 4 128385503 256771006 513542012