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52372780201 = 72326932
BaseRepresentation
bin110000110001101010…
…010011010010101001
312000011221121220011001
4300301222103102221
51324224412431301
640020522235001
73532563200200
oct606152232251
9160157556131
1052372780201
1120236083a25
12a197655a61
134c28517c91
14276b906237
151567d40c01
hexc31a934a9

52372780201 has 9 divisors (see below), whose sum is σ = 60925301751. Its totient is φ = 44889581352.

The previous prime is 52372780189. The next prime is 52372780211. The reversal of 52372780201 is 10208727325.

The square root of 52372780201 is 228851.

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., 1150227225 + 51222552976 = 33915^2 + 226324^2 .

It is a de Polignac number, because none of the positive numbers 2k-52372780201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52372780211) 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, 1585611 + ... + 1618303.

Almost surely, 252372780201 is an apocalyptic number.

52372780201 is the 228851-st square number.

52372780201 is the 114426-th centered octagonal number.

It is an amenable number.

52372780201 is a deficient number, since it is larger than the sum of its proper divisors (8552521550).

52372780201 is an frugal number, since it uses more digits than its factorization.

52372780201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65400 (or 32700 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 52372780201 in words is "fifty-two billion, three hundred seventy-two million, seven hundred eighty thousand, two hundred one".

Divisors: 1 7 49 32693 228851 1601957 1068832249 7481825743 52372780201