Search a number
-
+
488628157 is a prime number
BaseRepresentation
bin11101000111111…
…101111110111101
31021001102212211011
4131013331332331
52000042100112
6120252555221
715052161613
oct3507757675
91231385734
10488628157
112308aa626
12117782b11
137a302cb4
1448c756b3
152cd6daa7
hex1d1fdfbd

488628157 has 2 divisors, whose sum is σ = 488628158. Its totient is φ = 488628156.

The previous prime is 488628137. The next prime is 488628167. The reversal of 488628157 is 751826884.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438232356 + 50395801 = 20934^2 + 7099^2 .

It is a cyclic number.

It is not a de Polignac number, because 488628157 - 223 = 480239549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 488628157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (488628137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244314078 + 244314079.

It is an arithmetic number, because the mean of its divisors is an integer number (244314079).

Almost surely, 2488628157 is an apocalyptic number.

It is an amenable number.

488628157 is a deficient number, since it is larger than the sum of its proper divisors (1).

488628157 is an equidigital number, since it uses as much as digits as its factorization.

488628157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 860160, while the sum is 49.

The square root of 488628157 is about 22104.9351277039. The cubic root of 488628157 is about 787.6370975554.

The spelling of 488628157 in words is "four hundred eighty-eight million, six hundred twenty-eight thousand, one hundred fifty-seven".