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11715942891357 = 331409307965799
BaseRepresentation
bin1010101001111101010010…
…0111010011111101011101
31112111000220012111212112000
42222133110213103331131
53013423222340010412
640530121352232513
72316306662304555
oct252372447237535
945430805455460
1011715942891357
113807781367881
12139276569b739
1366ca68870303
142c70a9dc4165
15154b5a2264dc
hexaa7d49d3f5d

11715942891357 has 16 divisors (see below), whose sum is σ = 17369271120000. Its totient is φ = 7805085184512.

The previous prime is 11715942891287. The next prime is 11715942891377. The reversal of 11715942891357 is 75319824951711.

11715942891357 is a `hidden beast` number, since 1 + 1 + 7 + 1 + 594 + 2 + 8 + 9 + 1 + 35 + 7 = 666.

It is not a de Polignac number, because 11715942891357 - 212 = 11715942887261 is a prime.

It is a super-2 number, since 2×117159428913572 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11715942891294 and 11715942891303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11715942891377) 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, 153944857 + ... + 154020942.

It is an arithmetic number, because the mean of its divisors is an integer number (1085579445000).

Almost surely, 211715942891357 is an apocalyptic number.

It is an amenable number.

11715942891357 is a deficient number, since it is larger than the sum of its proper divisors (5653328228643).

11715942891357 is a wasteful number, since it uses less digits than its factorization.

11715942891357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307967217 (or 307967211 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 63.

The spelling of 11715942891357 in words is "eleven trillion, seven hundred fifteen billion, nine hundred forty-two million, eight hundred ninety-one thousand, three hundred fifty-seven".

Divisors: 1 3 9 27 1409 4227 12681 38043 307965799 923897397 2771692191 8315076573 433923810791 1301771432373 3905314297119 11715942891357