Search a number
-
+
1472731901 is a prime number
BaseRepresentation
bin101011111001000…
…0001101011111101
310210122012112100222
41113302001223331
511004004410101
6402045431125
751332005004
oct12762015375
93718175328
101472731901
11696356303
1235126b4a5
131a61658c4
14dd845c3b
158946001b
hex57c81afd

1472731901 has 2 divisors, whose sum is σ = 1472731902. Its totient is φ = 1472731900.

The previous prime is 1472731877. The next prime is 1472731903. The reversal of 1472731901 is 1091372741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1430806276 + 41925625 = 37826^2 + 6475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1472731901 is a prime.

It is a Sophie Germain prime.

Together with 1472731903, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1472731903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 736365950 + 736365951.

It is an arithmetic number, because the mean of its divisors is an integer number (736365951).

Almost surely, 21472731901 is an apocalyptic number.

It is an amenable number.

1472731901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1472731901 is an equidigital number, since it uses as much as digits as its factorization.

1472731901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 1472731901 is about 38376.1892454162. The cubic root of 1472731901 is about 1137.7352959451.

The spelling of 1472731901 in words is "one billion, four hundred seventy-two million, seven hundred thirty-one thousand, nine hundred one".