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1311000426516 = 22311174315786539
BaseRepresentation
bin10011000100111101101…
…101101111100000010100
311122022220212121000112110
4103010331231233200110
5132434412102122031
62442133144551020
7163500545521614
oct23047555574024
94568825530473
101311000426516
11465aa0621480
121920b7482470
139681c140c61
144764a52aa44
152417ea4ac46
hex1313db6f814

1311000426516 has 192 divisors, whose sum is σ = 3638634531840. Its totient is φ = 362878064640.

The previous prime is 1311000426497. The next prime is 1311000426539. The reversal of 1311000426516 is 6156240001131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15105975 + ... + 15192513.

It is an arithmetic number, because the mean of its divisors is an integer number (18951221520).

Almost surely, 21311000426516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311000426516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1819317265920).

1311000426516 is an abundant number, since it is smaller than the sum of its proper divisors (2327634105324).

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

1311000426516 is a wasteful number, since it uses less digits than its factorization.

1311000426516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86774 (or 86772 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 1311000426516 its reverse (6156240001131), we get a palindrome (7467240427647).

The spelling of 1311000426516 in words is "one trillion, three hundred eleven billion, four hundred twenty-six thousand, five hundred sixteen".