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1013512530 = 235277121963
BaseRepresentation
bin111100011010001…
…111100101010010
32121122002202211010
4330122033211102
54033424400110
6244323031350
734054500012
oct7432174522
92548082733
101013512530
11480112a68
1224350b556
13131c8b774
1498867c42
155dea0020
hex3c68f952

1013512530 has 32 divisors (see below), whose sum is σ = 2441231424. Its totient is φ = 269292096.

The previous prime is 1013512517. The next prime is 1013512531. The reversal of 1013512530 is 352153101.

It is a junction number, because it is equal to n+sod(n) for n = 1013512497 and 1013512506.

It is not an unprimeable number, because it can be changed into a prime (1013512531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52672 + ... + 69291.

It is an arithmetic number, because the mean of its divisors is an integer number (76288482).

Almost surely, 21013512530 is an apocalyptic number.

1013512530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1013512530 is an abundant number, since it is smaller than the sum of its proper divisors (1427718894).

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

1013512530 is a wasteful number, since it uses less digits than its factorization.

1013512530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122250.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1013512530 is about 31835.7115516522. The cubic root of 1013512530 is about 1004.4840399990.

Adding to 1013512530 its reverse (352153101), we get a palindrome (1365665631).

The spelling of 1013512530 in words is "one billion, thirteen million, five hundred twelve thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 277 554 831 1385 1662 2770 4155 8310 121963 243926 365889 609815 731778 1219630 1829445 3658890 33783751 67567502 101351253 168918755 202702506 337837510 506756265 1013512530