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70465 = 517829
BaseRepresentation
bin10001001101000001
310120122211
4101031001
54223330
61302121
7412303
oct211501
9116584
1070465
1148a3a
1234941
13260c5
141b973
1515d2a
hex11341

70465 has 8 divisors (see below), whose sum is σ = 89640. Its totient is φ = 52992.

The previous prime is 70459. The next prime is 70481. The reversal of 70465 is 56407.

It can be written as a sum of positive squares in 4 ways, for example, as 16641 + 53824 = 129^2 + 232^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 70465 - 23 = 70457 is a prime.

It is an Ulam number.

70465 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330 + ... + 499.

It is an arithmetic number, because the mean of its divisors is an integer number (11205).

270465 is an apocalyptic number.

It is an amenable number.

70465 is a deficient number, since it is larger than the sum of its proper divisors (19175).

70465 is a wasteful number, since it uses less digits than its factorization.

70465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 70465 is about 265.4524439518. The cubic root of 70465 is about 41.3039087030.

It can be divided in two parts, 70 and 465, that added together give a palindrome (535).

The spelling of 70465 in words is "seventy thousand, four hundred sixty-five".

Divisors: 1 5 17 85 829 4145 14093 70465