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149690 = 2514969
BaseRepresentation
bin100100100010111010
321121100002
4210202322
514242230
63113002
71162262
oct444272
9247302
10149690
11a2512
1272762
1353198
143c7a2
152e545
hex248ba

149690 has 8 divisors (see below), whose sum is σ = 269460. Its totient is φ = 59872.

The previous prime is 149689. The next prime is 149711. The reversal of 149690 is 96941.

It can be written as a sum of positive squares in 2 ways, for example, as 121801 + 27889 = 349^2 + 167^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1496902 = 44814192200, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7475 + ... + 7494.

2149690 is an apocalyptic number.

149690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149690 is a deficient number, since it is larger than the sum of its proper divisors (119770).

149690 is a wasteful number, since it uses less digits than its factorization.

149690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14976.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 149690 is about 386.8979193534. The cubic root of 149690 is about 53.0963005309.

The spelling of 149690 in words is "one hundred forty-nine thousand, six hundred ninety".

Divisors: 1 2 5 10 14969 29938 74845 149690