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149130 = 23251657
BaseRepresentation
bin100100011010001010
321120120100
4210122022
514233010
63110230
71160532
oct443212
9246510
10149130
11a2053
1272376
1352b57
143c4c2
152e2c0
hex2468a

149130 has 24 divisors (see below), whose sum is σ = 387972. Its totient is φ = 39744.

The previous prime is 149119. The next prime is 149143. The reversal of 149130 is 31941.

It can be written as a sum of positive squares in 2 ways, for example, as 145161 + 3969 = 381^2 + 63^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a plaindrome in base 16.

It is an unprimeable number.

149130 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 11 ways as a sum of consecutive naturals, for example, 739 + ... + 918.

2149130 is an apocalyptic number.

149130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149130 is an abundant number, since it is smaller than the sum of its proper divisors (238842).

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

149130 is a wasteful number, since it uses less digits than its factorization.

149130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 149130 is about 386.1735361207. The cubic root of 149130 is about 53.0300055559.

It can be divided in two parts, 1491 and 30, that added together give a square (1521 = 392).

The spelling of 149130 in words is "one hundred forty-nine thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1657 3314 4971 8285 9942 14913 16570 24855 29826 49710 74565 149130