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72506 = 275179
BaseRepresentation
bin10001101100111010
310200110102
4101230322
54310011
61315402
7421250
oct215472
9120412
1072506
114a525
1235b62
1327005
141c5d0
151673b
hex11b3a

72506 has 8 divisors (see below), whose sum is σ = 124320. Its totient is φ = 31068.

The previous prime is 72503. The next prime is 72533. The reversal of 72506 is 60527.

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 (72503) 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, 2576 + ... + 2603.

It is an arithmetic number, because the mean of its divisors is an integer number (15540).

272506 is an apocalyptic number.

72506 is a deficient number, since it is larger than the sum of its proper divisors (51814).

72506 is a wasteful number, since it uses less digits than its factorization.

72506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 72506 is about 269.2693818465. The cubic root of 72506 is about 41.6989048282.

The spelling of 72506 in words is "seventy-two thousand, five hundred six".

Divisors: 1 2 7 14 5179 10358 36253 72506