Search a number
-
+
97397161 = 7121392
BaseRepresentation
bin1011100111000…
…10100110101001
320210021021210021
411303202212221
5144413202121
613355320441
72261601511
oct563424651
9223237707
1097397161
114aa83a24
1228750121
1317241b74
14cd14841
15883d641
hex5ce29a9

97397161 has 9 divisors (see below), whose sum is σ = 99504093. Its totient is φ = 95334540.

The previous prime is 97397159. The next prime is 97397171. The reversal of 97397161 is 16179379.

The square root of 97397161 is 9869.

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

It is not a de Polignac number, because 97397161 - 21 = 97397159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97397171) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 700630 + ... + 700768.

Almost surely, 297397161 is an apocalyptic number.

97397161 is the 9869-th square number.

97397161 is the 4935-th centered octagonal number.

It is an amenable number.

97397161 is a deficient number, since it is larger than the sum of its proper divisors (2106932).

97397161 is an frugal number, since it uses more digits than its factorization.

97397161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 210 counting only the distinct ones).

The product of its digits is 71442, while the sum is 43.

The cubic root of 97397161 is about 460.0963267081.

It can be divided in two parts, 9739 and 7161, that added together give a square (16900 = 1302).

The spelling of 97397161 in words is "ninety-seven million, three hundred ninety-seven thousand, one hundred sixty-one".

Divisors: 1 71 139 5041 9869 19321 700699 1371791 97397161