Search a number
-
+
318625228709 is a prime number
BaseRepresentation
bin1001010001011111000…
…10110010011110100101
31010110102112120200022122
410220233202302132211
520210021024304314
6402212512235325
732006554520564
oct4505742623645
91113375520278
10318625228709
111131456a92a7
1251902b3bb45
132407a74c0b8
14115c8a01bdb
15844c8ba28e
hex4a2f8b27a5

318625228709 has 2 divisors, whose sum is σ = 318625228710. Its totient is φ = 318625228708.

The previous prime is 318625228693. The next prime is 318625228723. The reversal of 318625228709 is 907822526813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305480606209 + 13144622500 = 552703^2 + 114650^2 .

It is a cyclic number.

It is not a de Polignac number, because 318625228709 - 24 = 318625228693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318625228729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159312614354 + 159312614355.

It is an arithmetic number, because the mean of its divisors is an integer number (159312614355).

Almost surely, 2318625228709 is an apocalyptic number.

It is an amenable number.

318625228709 is a deficient number, since it is larger than the sum of its proper divisors (1).

318625228709 is an equidigital number, since it uses as much as digits as its factorization.

318625228709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 318625228709 in words is "three hundred eighteen billion, six hundred twenty-five million, two hundred twenty-eight thousand, seven hundred nine".