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13401045 = 345729163
BaseRepresentation
bin110011000111…
…101111010101
3221012211210000
4303013233111
511412313140
61155121513
7221623050
oct63075725
927184700
1013401045
117623449
1245a3299
132a12918
141acba97
15129aa30
hexcc7bd5

13401045 has 80 divisors (see below), whose sum is σ = 28575360. Its totient is φ = 5878656.

The previous prime is 13401043. The next prime is 13401053. The reversal of 13401045 is 54010431.

It is a happy number.

13401045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13401045 - 21 = 13401043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401041) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 82134 + ... + 82296.

It is an arithmetic number, because the mean of its divisors is an integer number (357192).

Almost surely, 213401045 is an apocalyptic number.

13401045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13401045 is an abundant number, since it is smaller than the sum of its proper divisors (15174315).

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

13401045 is a wasteful number, since it uses less digits than its factorization.

13401045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 13401045 is about 3660.7437768847. The cubic root of 13401045 is about 237.5269480041.

Adding to 13401045 its reverse (54010431), we get a palindrome (67411476).

The spelling of 13401045 in words is "thirteen million, four hundred one thousand, forty-five".

Divisors: 1 3 5 7 9 15 21 27 29 35 45 63 81 87 105 135 145 163 189 203 261 315 405 435 489 567 609 783 815 945 1015 1141 1305 1467 1827 2349 2445 2835 3045 3423 3915 4401 4727 5481 5705 7335 9135 10269 11745 13203 14181 16443 17115 22005 23635 27405 30807 33089 42543 51345 66015 70905 82215 92421 99267 127629 154035 165445 212715 297801 382887 462105 496335 638145 893403 1489005 1914435 2680209 4467015 13401045