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137810 = 2513781
BaseRepresentation
bin100001101001010010
321000001002
4201221102
513402220
62542002
71112531
oct415122
9230032
10137810
11945a2
1267902
134a95a
1438318
152ac75
hex21a52

137810 has 8 divisors (see below), whose sum is σ = 248076. Its totient is φ = 55120.

The previous prime is 137803. The next prime is 137827. The reversal of 137810 is 18731.

137810 is nontrivially palindromic in base 9.

It can be written as a sum of positive squares in 2 ways, for example, as 137641 + 169 = 371^2 + 13^2 .

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

It is a super-2 number, since 2×1378102 = 37983192200, which contains 22 as substring.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 6881 + ... + 6900.

2137810 is an apocalyptic number.

137810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137810 is a deficient number, since it is larger than the sum of its proper divisors (110266).

137810 is a wasteful number, since it uses less digits than its factorization.

137810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13788.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 137810 is about 371.2276929325. The cubic root of 137810 is about 51.6527653663.

The spelling of 137810 in words is "one hundred thirty-seven thousand, eight hundred ten".

Divisors: 1 2 5 10 13781 27562 68905 137810