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120149 = 137877
BaseRepresentation
bin11101010101010101
320002210222
4131111111
512321044
62324125
71010201
oct352525
9202728
10120149
11822a7
1259645
13428c3
1431b01
15258ee
hex1d555

120149 has 4 divisors (see below), whose sum is σ = 121164. Its totient is φ = 119136.

The previous prime is 120121. The next prime is 120157. The reversal of 120149 is 941021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 87025 + 33124 = 295^2 + 182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120149 is a prime.

It is a super-3 number, since 3×1201493 = 5203334387003847, which contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 120149.

It is not an unprimeable number, because it can be changed into a prime (120199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302 + ... + 575.

It is an arithmetic number, because the mean of its divisors is an integer number (30291).

2120149 is an apocalyptic number.

It is an amenable number.

120149 is a deficient number, since it is larger than the sum of its proper divisors (1015).

120149 is an equidigital number, since it uses as much as digits as its factorization.

120149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 120149 is about 346.6251577713. The cubic root of 120149 is about 49.3446477985.

The spelling of 120149 in words is "one hundred twenty thousand, one hundred forty-nine".

Divisors: 1 137 877 120149