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1349985 = 357132343
BaseRepresentation
bin101001001100101100001
32112120211110
411021211201
5321144420
644533533
714321550
oct5114541
92476743
101349985
1184229a
125512a9
13383610
14271d97
151b9ee0
hex149961

1349985 has 64 divisors (see below), whose sum is σ = 2838528. Its totient is φ = 532224.

The previous prime is 1349977. The next prime is 1349993. The reversal of 1349985 is 5899431.

It is an interprime number because it is at equal distance from previous prime (1349977) and next prime (1349993).

It is not a de Polignac number, because 1349985 - 23 = 1349977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31374 + ... + 31416.

It is an arithmetic number, because the mean of its divisors is an integer number (44352).

21349985 is an apocalyptic number.

1349985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1349985 is an abundant number, since it is smaller than the sum of its proper divisors (1488543).

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

1349985 is a wasteful number, since it uses less digits than its factorization.

1349985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94.

The product of its digits is 38880, while the sum is 39.

The square root of 1349985 is about 1161.8885488721. Note that the first 3 decimals coincide. The cubic root of 1349985 is about 110.5205356209.

The spelling of 1349985 in words is "one million, three hundred forty-nine thousand, nine hundred eighty-five".

Divisors: 1 3 5 7 13 15 21 23 35 39 43 65 69 91 105 115 129 161 195 215 273 299 301 345 455 483 559 645 805 897 903 989 1365 1495 1505 1677 2093 2415 2795 2967 3913 4485 4515 4945 6279 6923 8385 10465 11739 12857 14835 19565 20769 31395 34615 38571 58695 64285 89999 103845 192855 269997 449995 1349985