Search a number
-
+
13105515030449 = 196737927163547
BaseRepresentation
bin1011111010110101110110…
…0100010110011110110001
31201101212121212122110001012
42332231131210112132301
53204210043321433244
643512331313520305
72521561610512022
oct276553544263661
951355555573035
1013105515030449
1141a30216358a6
121577b2a573095
13740ac9c41c8a
1433444b6d2c49
1517ad87b5e89e
hexbeb5d9167b1

13105515030449 has 16 divisors (see below), whose sum is σ = 14038121606400. Its totient is φ = 12198170620944.

The previous prime is 13105515030407. The next prime is 13105515030457. The reversal of 13105515030449 is 94403051550131.

It is a cyclic number.

It is not a de Polignac number, because 13105515030449 - 224 = 13105498253233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13105515030479) 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, 13099307 + ... + 14064240.

It is an arithmetic number, because the mean of its divisors is an integer number (877382600400).

Almost surely, 213105515030449 is an apocalyptic number.

13105515030449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13105515030449 is a deficient number, since it is larger than the sum of its proper divisors (932606575951).

13105515030449 is a wasteful number, since it uses less digits than its factorization.

13105515030449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27164012.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 13105515030449 in words is "thirteen trillion, one hundred five billion, five hundred fifteen million, thirty thousand, four hundred forty-nine".

Divisors: 1 19 67 379 1273 7201 25393 482467 27163547 516107393 1819957649 10294984313 34579195331 195604701947 689763948971 13105515030449