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70730 = 2511643
BaseRepresentation
bin10001010001001010
310121000122
4101101022
54230410
61303242
7413132
oct212112
9117018
1070730
1149160
1234b22
132626a
141bac2
1515e55
hex1144a

70730 has 16 divisors (see below), whose sum is σ = 139104. Its totient is φ = 25680.

The previous prime is 70729. The next prime is 70753. The reversal of 70730 is 3707.

It is a Curzon number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 70699 and 70708.

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, 212 + ... + 431.

It is an arithmetic number, because the mean of its divisors is an integer number (8694).

270730 is an apocalyptic number.

70730 is a deficient number, since it is larger than the sum of its proper divisors (68374).

70730 is a wasteful number, since it uses less digits than its factorization.

70730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 147, while the sum is 17.

The square root of 70730 is about 265.9511233291. The cubic root of 70730 is about 41.3556215786.

It can be divided in two parts, 707 and 30, that added together give a palindrome (737).

The spelling of 70730 in words is "seventy thousand, seven hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 643 1286 3215 6430 7073 14146 35365 70730