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13630146 = 235474153
BaseRepresentation
bin110011111111…
…101011000010
3221122111001020
4303333223002
511442131041
61204050310
7223566015
oct63775302
927574036
1013630146
11776a592
124693996
132a92c9a
141b4b37c
1512e3866
hexcffac2

13630146 has 16 divisors (see below), whose sum is σ = 27316704. Its totient is φ = 4533984.

The previous prime is 13630139. The next prime is 13630159. The reversal of 13630146 is 64103631.

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, 1206 + ... + 5358.

It is an arithmetic number, because the mean of its divisors is an integer number (1707294).

Almost surely, 213630146 is an apocalyptic number.

13630146 is an abundant number, since it is smaller than the sum of its proper divisors (13686558).

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

13630146 is a wasteful number, since it uses less digits than its factorization.

13630146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 13630146 is about 3691.9027614497. The cubic root of 13630146 is about 238.8728746271.

Adding to 13630146 its reverse (64103631), we get a palindrome (77733777).

The spelling of 13630146 in words is "thirteen million, six hundred thirty thousand, one hundred forty-six".

Divisors: 1 2 3 6 547 1094 1641 3282 4153 8306 12459 24918 2271691 4543382 6815073 13630146