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1311301423 = 3782942751
BaseRepresentation
bin100111000101000…
…1101111100101111
310101101110000101101
41032022031330233
510141143121143
6334041423531
744331610135
oct11612157457
93341400341
101311301423
11613217193
1230719aba7
1317b894003
14c6223755
157a1c3b4d
hex4e28df2f

1311301423 has 8 divisors (see below), whose sum is σ = 1348398080. Its totient is φ = 1274292000.

The previous prime is 1311301417. The next prime is 1311301429. The reversal of 1311301423 is 3241031131.

It is an interprime number because it is at equal distance from previous prime (1311301417) and next prime (1311301429).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1311301423 is a prime.

It is a super-2 number, since 2×13113014232 = 3439022843923649858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311301423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311301429) 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, 9298 + ... + 52048.

It is an arithmetic number, because the mean of its divisors is an integer number (168549760).

Almost surely, 21311301423 is an apocalyptic number.

1311301423 is a deficient number, since it is larger than the sum of its proper divisors (37096657).

1311301423 is an equidigital number, since it uses as much as digits as its factorization.

1311301423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43617.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1311301423 is about 36211.8961530600. The cubic root of 1311301423 is about 1094.5464015066.

Adding to 1311301423 its reverse (3241031131), we get a palindrome (4552332554).

The spelling of 1311301423 in words is "one billion, three hundred eleven million, three hundred one thousand, four hundred twenty-three".

Divisors: 1 37 829 30673 42751 1581787 35440579 1311301423