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137506 = 2197349
BaseRepresentation
bin100001100100100010
320222121211
4201210202
513400011
62540334
71111615
oct414442
9228554
10137506
1194346
12676aa
134a785
143817c
152ab21
hex21922

137506 has 8 divisors (see below), whose sum is σ = 207900. Its totient is φ = 68208.

The previous prime is 137491. The next prime is 137507. The reversal of 137506 is 605731.

It can be written as a sum of positive squares in 2 ways, for example, as 112225 + 25281 = 335^2 + 159^2 .

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

It is not an unprimeable number, because it can be changed into a prime (137507) 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, 220 + ... + 568.

2137506 is an apocalyptic number.

137506 is a deficient number, since it is larger than the sum of its proper divisors (70394).

137506 is a wasteful number, since it uses less digits than its factorization.

137506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 137506 is about 370.8180146649. The cubic root of 137506 is about 51.6147565111.

The spelling of 137506 in words is "one hundred thirty-seven thousand, five hundred six".

Divisors: 1 2 197 349 394 698 68753 137506