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1313331230 = 251733112441
BaseRepresentation
bin100111001000111…
…1101100000011110
310101112021010202102
41032101331200132
510142203044410
6334153125102
744355063011
oct11621754036
93345233672
101313331230
11614383212
123079b9792
1317c124b93
14c65d1378
157a4752a5
hex4e47d81e

1313331230 has 32 divisors (see below), whose sum is σ = 2386283328. Its totient is φ = 520403200.

The previous prime is 1313331203. The next prime is 1313331263. The reversal of 1313331230 is 321333131.

It is a Curzon 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, 536810 + ... + 539250.

It is an arithmetic number, because the mean of its divisors is an integer number (74571354).

Almost surely, 21313331230 is an apocalyptic number.

1313331230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313331230 is a deficient number, since it is larger than the sum of its proper divisors (1072952098).

1313331230 is a wasteful number, since it uses less digits than its factorization.

1313331230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1313331230 is about 36239.9121135800. The cubic root of 1313331230 is about 1095.1108719216.

Adding to 1313331230 its reverse (321333131), we get a palindrome (1634664361).

The spelling of 1313331230 in words is "one billion, three hundred thirteen million, three hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 173 311 346 622 865 1555 1730 2441 3110 4882 12205 24410 53803 107606 269015 422293 538030 759151 844586 1518302 2111465 3795755 4222930 7591510 131333123 262666246 656665615 1313331230