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72070 = 257207
BaseRepresentation
bin10001100110000110
310122212021
4101212012
54301240
61313354
7420055
oct214606
9118767
1072070
114a169
123585a
1326a5b
141c39c
151654a
hex11986

72070 has 8 divisors (see below), whose sum is σ = 129744. Its totient is φ = 28824.

The previous prime is 72053. The next prime is 72073. The reversal of 72070 is 7027.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72073) by changing a digit.

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, 3594 + ... + 3613.

It is an arithmetic number, because the mean of its divisors is an integer number (16218).

272070 is an apocalyptic number.

72070 is a deficient number, since it is larger than the sum of its proper divisors (57674).

72070 is a wasteful number, since it uses less digits than its factorization.

72070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7214.

The product of its (nonzero) digits is 98, while the sum is 16.

The square root of 72070 is about 268.4585629106. The cubic root of 72070 is about 41.6151541190.

Adding to 72070 its reverse (7027), we get a palindrome (79097).

The spelling of 72070 in words is "seventy-two thousand, seventy", and thus it is an iban number.

Divisors: 1 2 5 10 7207 14414 36035 72070