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1213700697313 = 133722433112481
BaseRepresentation
bin10001101010010110001…
…100101110110011100001
311022000202212222122110021
4101222112030232303201
5124341124334303223
62325322202033441
7153454430464666
oct21522614566341
94260685878407
101213700697313
11428800447835
12177281aa8881
138a5b3bb12b0
1442a59d6da6d
15218878eb65d
hex11a9632ece1

1213700697313 has 16 divisors (see below), whose sum is σ = 1342460072016. Its totient is φ = 1090001387520.

The previous prime is 1213700697299. The next prime is 1213700697361. The reversal of 1213700697313 is 3137960073121.

It can be written as a sum of positive squares in 8 ways, for example, as 404873872209 + 808826825104 = 636297^2 + 899348^2 .

It is not a de Polignac number, because 1213700697313 - 213 = 1213700689121 is a prime.

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 1213700697313.

It is not an unprimeable number, because it can be changed into a prime (1213700697613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10734033 + ... + 10846513.

It is an arithmetic number, because the mean of its divisors is an integer number (83903754501).

Almost surely, 21213700697313 is an apocalyptic number.

1213700697313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1213700697313 is a deficient number, since it is larger than the sum of its proper divisors (128759374703).

1213700697313 is a wasteful number, since it uses less digits than its factorization.

1213700697313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134964.

The product of its (nonzero) digits is 142884, while the sum is 43.

The spelling of 1213700697313 in words is "one trillion, two hundred thirteen billion, seven hundred million, six hundred ninety-seven thousand, three hundred thirteen".

Divisors: 1 13 37 481 22433 112481 291629 830021 1462253 4161797 10790273 54103361 2523286273 32802721549 93361592101 1213700697313