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150740 = 2257537
BaseRepresentation
bin100100110011010100
321122202222
4210303110
514310430
63121512
71165322
oct446324
9248688
10150740
11a3287
1273298
13537c5
143cd12
152e9e5
hex24cd4

150740 has 12 divisors (see below), whose sum is σ = 316596. Its totient is φ = 60288.

The previous prime is 150721. The next prime is 150743. The reversal of 150740 is 47051.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 59536 + 91204 = 244^2 + 302^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150743) by changing a digit.

150740 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3749 + ... + 3788.

It is an arithmetic number, because the mean of its divisors is an integer number (26383).

2150740 is an apocalyptic number.

150740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150740 is an abundant number, since it is smaller than the sum of its proper divisors (165856).

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

150740 is a wasteful number, since it uses less digits than its factorization.

150740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7546 (or 7544 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 150740 is about 388.2524951626. The cubic root of 150740 is about 53.2201593187.

Adding to 150740 its reverse (47051), we get a palindrome (197791).

The spelling of 150740 in words is "one hundred fifty thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 7537 15074 30148 37685 75370 150740