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48237776161 = 47246732
BaseRepresentation
bin101100111011001100…
…100000110100100001
311121111202212220222021
4230323030200310201
51242242332314121
634054330541441
73325243221631
oct547314406441
9147452786867
1048237776161
1119503a70213
129422897881
134719948223
14249868c6c1
1513c4cee641
hexb3b320d21

48237776161 has 9 divisors (see below), whose sum is σ = 49296497971. Its totient is φ = 47201337472.

The previous prime is 48237776159. The next prime is 48237776177. The reversal of 48237776161 is 16167773284.

The square root of 48237776161 is 219631.

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

It can be written as a sum of positive squares in only one way, i.e., 46235750625 + 2002025536 = 215025^2 + 44744^2 .

It is not a de Polignac number, because 48237776161 - 21 = 48237776159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48237776099 and 48237776108.

It is not an unprimeable number, because it can be changed into a prime (48237576161) 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, 10320321 + ... + 10324993.

Almost surely, 248237776161 is an apocalyptic number.

48237776161 is the 219631-st square number.

48237776161 is the 109816-th centered octagonal number.

It is an amenable number.

48237776161 is a deficient number, since it is larger than the sum of its proper divisors (1058721810).

48237776161 is an frugal number, since it uses more digits than its factorization.

48237776161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9440 (or 4720 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 52.

The spelling of 48237776161 in words is "forty-eight billion, two hundred thirty-seven million, seven hundred seventy-six thousand, one hundred sixty-one".

Divisors: 1 47 2209 4673 219631 10322657 21836929 1026335663 48237776161