Search a number
-
+
70241161 = 174292
BaseRepresentation
bin1000010111111…
…00101110001001
311220011121202111
410023330232021
5120440204121
610545302321
71512016504
oct413745611
9156147674
1070241161
1136716251
121b6349a1
1311724523
14948613b
1562772e1
hex42fcb89

70241161 has 15 divisors (see below), whose sum is σ = 77293411. Its totient is φ = 63829696.

The previous prime is 70241153. The next prime is 70241167. The reversal of 70241161 is 16114207.

The square root of 70241161 is 8381.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 2013561 + 68227600 = 1419^2 + 8260^2 .

It is not a de Polignac number, because 70241161 - 23 = 70241153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70241167) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2422095 + ... + 2422123.

Almost surely, 270241161 is an apocalyptic number.

70241161 is the 8381-st square number.

70241161 is the 4191-st centered octagonal number.

It is an amenable number.

70241161 is a deficient number, since it is larger than the sum of its proper divisors (7052250).

70241161 is an frugal number, since it uses more digits than its factorization.

70241161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The cubic root of 70241161 is about 412.6012700241.

Adding to 70241161 its reverse (16114207), we get a palindrome (86355368).

The spelling of 70241161 in words is "seventy million, two hundred forty-one thousand, one hundred sixty-one".

Divisors: 1 17 29 289 493 841 4913 8381 14297 83521 142477 243049 2422109 4131833 70241161