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70130 = 257013
BaseRepresentation
bin10001000111110010
310120012102
4101013302
54221010
61300402
7411314
oct210762
9116172
1070130
1148765
1234702
1325bc8
141b7b4
1515ba5
hex111f2

70130 has 8 divisors (see below), whose sum is σ = 126252. Its totient is φ = 28048.

The previous prime is 70123. The next prime is 70139. The reversal of 70130 is 3107.

It can be written as a sum of positive squares in 2 ways, for example, as 69169 + 961 = 263^2 + 31^2 .

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 (70139) by changing a digit.

70130 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3497 + ... + 3516.

270130 is an apocalyptic number.

70130 is a deficient number, since it is larger than the sum of its proper divisors (56122).

70130 is a wasteful number, since it uses less digits than its factorization.

70130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7020.

The product of its (nonzero) digits is 21, while the sum is 11.

The square root of 70130 is about 264.8206940554. The cubic root of 70130 is about 41.2383499393.

Adding to 70130 its reverse (3107), we get a palindrome (73237).

The spelling of 70130 in words is "seventy thousand, one hundred thirty".

Divisors: 1 2 5 10 7013 14026 35065 70130