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1311503664122 = 21934513254319
BaseRepresentation
bin10011000101011011101…
…101011100001111111010
311122101012221112010202022
4103011123231130033322
5132441424414222442
62442255123034442
7163516166131631
oct23053355341772
94571187463668
101311503664122
1146622969a323
12192217b0ba22
139689c48a8a2
14476972c6518
15241add033d2
hex1315bb5c3fa

1311503664122 has 8 divisors (see below), whose sum is σ = 2070795259200. Its totient is φ = 621238577724.

The previous prime is 1311503664083. The next prime is 1311503664151. The reversal of 1311503664122 is 2214663051131.

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

It is a super-4 number, since 4×13115036641224 (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17256627122 + ... + 17256627197.

It is an arithmetic number, because the mean of its divisors is an integer number (258849407400).

Almost surely, 21311503664122 is an apocalyptic number.

1311503664122 is a deficient number, since it is larger than the sum of its proper divisors (759291595078).

1311503664122 is a wasteful number, since it uses less digits than its factorization.

1311503664122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34513254340.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 1311503664122 in words is "one trillion, three hundred eleven billion, five hundred three million, six hundred sixty-four thousand, one hundred twenty-two".

Divisors: 1 2 19 38 34513254319 69026508638 655751832061 1311503664122