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149810 = 2571211
BaseRepresentation
bin100100100100110010
321121111112
4210210302
514243220
63113322
71162523
oct444462
9247445
10149810
11a2611
1272842
135325b
143c84a
152e5c5
hex24932

149810 has 16 divisors (see below), whose sum is σ = 274752. Its totient is φ = 58800.

The previous prime is 149803. The next prime is 149827. The reversal of 149810 is 18941.

It can be divided in two parts, 149 and 810, that added together give a palindrome (959).

It is a super-2 number, since 2×1498102 = 44886072200, which contains 22 as substring.

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

It is an unprimeable number.

149810 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605 + ... + 815.

It is an arithmetic number, because the mean of its divisors is an integer number (17172).

2149810 is an apocalyptic number.

149810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149810 is a deficient number, since it is larger than the sum of its proper divisors (124942).

149810 is a wasteful number, since it uses less digits than its factorization.

149810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 149810 is about 387.0529679514. The cubic root of 149810 is about 53.1104850772.

The spelling of 149810 in words is "one hundred forty-nine thousand, eight hundred ten".

Divisors: 1 2 5 10 71 142 211 355 422 710 1055 2110 14981 29962 74905 149810