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1311401230 = 25442129663
BaseRepresentation
bin100111000101010…
…0110010100001110
310101101122002021221
41032022212110032
510141204314410
6334043513554
744332504126
oct11612462416
93341562257
101311401230
11613285177
123072288ba
1317b8ca579
14c624bc86
157a1e34da
hex4e2a650e

1311401230 has 16 divisors (see below), whose sum is σ = 2361135744. Its totient is φ = 524424160.

The previous prime is 1311401219. The next prime is 1311401239. The reversal of 1311401230 is 321041131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311401239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29379 + ... + 59041.

It is an arithmetic number, because the mean of its divisors is an integer number (147570984).

Almost surely, 21311401230 is an apocalyptic number.

1311401230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311401230 is a deficient number, since it is larger than the sum of its proper divisors (1049734514).

1311401230 is a wasteful number, since it uses less digits than its factorization.

1311401230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34091.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1311401230 is about 36213.2742236876. The cubic root of 1311401230 is about 1094.5741705151.

Adding to 1311401230 its reverse (321041131), we get a palindrome (1632442361).

The spelling of 1311401230 in words is "one billion, three hundred eleven million, four hundred one thousand, two hundred thirty".

Divisors: 1 2 5 10 4421 8842 22105 29663 44210 59326 148315 296630 131140123 262280246 655700615 1311401230