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70450 = 2521409
BaseRepresentation
bin10001001100110010
310120122021
4101030302
54223300
61302054
7412252
oct211462
9116567
1070450
1148a26
123492a
13260b3
141b962
1515d1a
hex11332

70450 has 12 divisors (see below), whose sum is σ = 131130. Its totient is φ = 28160.

The previous prime is 70439. The next prime is 70451. The reversal of 70450 is 5407.

It can be written as a sum of positive squares in 3 ways, for example, as 29241 + 41209 = 171^2 + 203^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70451) by changing a digit.

70450 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 5 ways as a sum of consecutive naturals, for example, 655 + ... + 754.

270450 is an apocalyptic number.

70450 is a deficient number, since it is larger than the sum of its proper divisors (60680).

70450 is a wasteful number, since it uses less digits than its factorization.

70450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 70450 is about 265.4241887997. The cubic root of 70450 is about 41.3009776848.

Adding to 70450 its reverse (5407), we get a palindrome (75857).

The spelling of 70450 in words is "seventy thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 1409 2818 7045 14090 35225 70450