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149530 = 2519787
BaseRepresentation
bin100100100000011010
321121010011
4210200122
514241110
63112134
71161643
oct444032
9247104
10149530
11a2387
127264a
13530a4
143c6ca
152e48a
hex2481a

149530 has 16 divisors (see below), whose sum is σ = 283680. Its totient is φ = 56592.

The previous prime is 149521. The next prime is 149531. The reversal of 149530 is 35941.

It is not an unprimeable number, because it can be changed into a prime (149531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204 + ... + 583.

It is an arithmetic number, because the mean of its divisors is an integer number (17730).

2149530 is an apocalyptic number.

149530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149530 is a deficient number, since it is larger than the sum of its proper divisors (134150).

149530 is a wasteful number, since it uses less digits than its factorization.

149530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 149530 is about 386.6910911826. The cubic root of 149530 is about 53.0773760053.

It can be divided in two parts, 1495 and 30, that multiplied together give a triangular number (44850 = T299).

The spelling of 149530 in words is "one hundred forty-nine thousand, five hundred thirty".