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1311344124 = 223145375209
BaseRepresentation
bin100111000101001…
…1000010111111100
310101101112011221220
41032022120113330
510141201002444
6334042353340
744332145466
oct11612302774
93341464856
101311344124
11613246282
123071bb850
1317b8aa58c
14c6235136
157a1d1619
hex4e2985fc

1311344124 has 24 divisors (see below), whose sum is σ = 3061949520. Its totient is φ = 436808064.

The previous prime is 1311344119. The next prime is 1311344159. The reversal of 1311344124 is 4214431131.

1311344124 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1311344094 and 1311344103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20169 + ... + 55040.

It is an arithmetic number, because the mean of its divisors is an integer number (127581230).

Almost surely, 21311344124 is an apocalyptic number.

It is an amenable number.

1311344124 is an abundant number, since it is smaller than the sum of its proper divisors (1750605396).

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

1311344124 is a wasteful number, since it uses less digits than its factorization.

1311344124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76669 (or 76667 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 1311344124 is about 36212.4857473220. The cubic root of 1311344124 is about 1094.5582822529.

Adding to 1311344124 its reverse (4214431131), we get a palindrome (5525775255).

The spelling of 1311344124 in words is "one billion, three hundred eleven million, three hundred forty-four thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 1453 2906 4359 5812 8718 17436 75209 150418 225627 300836 451254 902508 109278677 218557354 327836031 437114708 655672062 1311344124