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520124141123 = 638578145139
BaseRepresentation
bin1111001000110011101…
…00001000111001000011
31211201112100100000002122
413210121310020321003
532010203240003443
61034535225234455
752402106152616
oct7443164107103
91751470300078
10520124141123
11190646577594
1284978632a2b
133a08046c4a2
141b261bc217d
15d7e2721968
hex7919d08e43

520124141123 has 4 divisors (see below), whose sum is σ = 520132350120. Its totient is φ = 520115932128.

The previous prime is 520124141107. The next prime is 520124141167. The reversal of 520124141123 is 321141421025.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520124141123 - 24 = 520124141107 is a prime.

It is a super-2 number, since 2×5201241411232 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520124141092 and 520124141101.

It is not an unprimeable number, because it can be changed into a prime (520124146123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4008713 + ... + 4136426.

It is an arithmetic number, because the mean of its divisors is an integer number (130033087530).

Almost surely, 2520124141123 is an apocalyptic number.

520124141123 is a deficient number, since it is larger than the sum of its proper divisors (8208997).

520124141123 is an equidigital number, since it uses as much as digits as its factorization.

520124141123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8208996.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 520124141123 its reverse (321141421025), we get a palindrome (841265562148).

The spelling of 520124141123 in words is "five hundred twenty billion, one hundred twenty-four million, one hundred forty-one thousand, one hundred twenty-three".

Divisors: 1 63857 8145139 520124141123