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149630 = 25131151
BaseRepresentation
bin100100100001111110
321121020212
4210201332
514242010
63112422
71162145
oct444176
9247225
10149630
11a2468
1272712
1353150
143c75c
152e505
hex2487e

149630 has 16 divisors (see below), whose sum is σ = 290304. Its totient is φ = 55200.

The previous prime is 149629. The next prime is 149689. The reversal of 149630 is 36941.

149630 = 262 + 272 + ... + 772.

149630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 149596 and 149605.

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, 446 + ... + 705.

It is an arithmetic number, because the mean of its divisors is an integer number (18144).

2149630 is an apocalyptic number.

149630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149630 is a deficient number, since it is larger than the sum of its proper divisors (140674).

149630 is a wasteful number, since it uses less digits than its factorization.

149630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 149630 is about 386.8203717490. The cubic root of 149630 is about 53.0892054148.

The spelling of 149630 in words is "one hundred forty-nine thousand, six hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 1151 2302 5755 11510 14963 29926 74815 149630