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14992987382505 = 32511171781697847
BaseRepresentation
bin1101101000101101001110…
…1011111110001011101001
31222002022112001212111111200
43122023103223332023221
53431121114232220010
651515403332514413
73105131130006456
oct332132353761351
958068461774450
1014992987382505
114860543569230
1218218a917ba09
13849aa9419782
1439b9433d282d
151b0006ba6cc0
hexda2d3afe2e9

14992987382505 has 48 divisors (see below), whose sum is σ = 30018045343104. Its totient is φ = 6841719728640.

The previous prime is 14992987382497. The next prime is 14992987382507. The reversal of 14992987382505 is 50528378929941.

14992987382505 is a `hidden beast` number, since 1 + 4 + 9 + 9 + 2 + 9 + 87 + 38 + 2 + 505 = 666.

It is not a de Polignac number, because 14992987382505 - 23 = 14992987382497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14992987382507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 890840509 + ... + 890857338.

It is an arithmetic number, because the mean of its divisors is an integer number (625375944648).

Almost surely, 214992987382505 is an apocalyptic number.

14992987382505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

14992987382505 is an abundant number, since it is smaller than the sum of its proper divisors (15025057960599).

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

14992987382505 is a wasteful number, since it uses less digits than its factorization.

14992987382505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781697886 (or 1781697883 counting only the distinct ones).

The product of its (nonzero) digits is 391910400, while the sum is 72.

The spelling of 14992987382505 in words is "fourteen trillion, nine hundred ninety-two billion, nine hundred eighty-seven million, three hundred eighty-two thousand, five hundred five".

Divisors: 1 3 5 9 11 15 17 33 45 51 55 85 99 153 165 187 255 495 561 765 935 1683 2805 8415 1781697847 5345093541 8908489235 16035280623 19598676317 26725467705 30288863399 58796028951 80176403115 90866590197 97993381585 151444316995 176388086853 272599770591 293980144755 333177497389 454332950985 881940434265 999532492167 1362998852955 1665887486945 2998597476501 4997662460835 14992987382505