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13491673288734 = 234223953235451
BaseRepresentation
bin1100010001010100011001…
…1001001101000000011110
31202202210100220112111000110
43010111012121031000132
53232021421330214414
644405553353310450
72561512145530644
oct304250631150036
952683326474013
1013491673288734
114331871931833
12161a93a105426
1376b34a9a21b4
14349001417194
15185e39286459
hexc454664d01e

13491673288734 has 16 divisors (see below), whose sum is σ = 26983985909760. Its totient is φ = 4497117874200.

The previous prime is 13491673288679. The next prime is 13491673288759. The reversal of 13491673288734 is 43788237619431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26364292 + ... + 26871159.

It is an arithmetic number, because the mean of its divisors is an integer number (1686499119360).

Almost surely, 213491673288734 is an apocalyptic number.

13491673288734 is an abundant number, since it is smaller than the sum of its proper divisors (13492312621026).

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

13491673288734 is a wasteful number, since it uses less digits than its factorization.

13491673288734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53277695.

The product of its digits is 146313216, while the sum is 66.

The spelling of 13491673288734 in words is "thirteen trillion, four hundred ninety-one billion, six hundred seventy-three million, two hundred eighty-eight thousand, seven hundred thirty-four".

Divisors: 1 2 3 6 42239 84478 126717 253434 53235451 106470902 159706353 319412706 2248612214789 4497224429578 6745836644367 13491673288734