Search a number
-
+
120255361 is a prime number
BaseRepresentation
bin1110010101011…
…11001110000001
322101021121100021
413022233032001
5221241132421
615533253441
72660103502
oct712571601
9271247307
10120255361
11619766a6
1234334281
131bbb6225
1411d84ba9
15a856341
hex72af381

120255361 has 2 divisors, whose sum is σ = 120255362. Its totient is φ = 120255360.

The previous prime is 120255353. The next prime is 120255379. The reversal of 120255361 is 163552021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118919025 + 1336336 = 10905^2 + 1156^2 .

It is an emirp because it is prime and its reverse (163552021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120255361 - 23 = 120255353 is a prime.

It is a super-2 number, since 2×1202553612 = 28922703698480642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120255341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60127680 + 60127681.

It is an arithmetic number, because the mean of its divisors is an integer number (60127681).

Almost surely, 2120255361 is an apocalyptic number.

It is an amenable number.

120255361 is a deficient number, since it is larger than the sum of its proper divisors (1).

120255361 is an equidigital number, since it uses as much as digits as its factorization.

120255361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 120255361 is about 10966.1005375658. The cubic root of 120255361 is about 493.5920416368.

The spelling of 120255361 in words is "one hundred twenty million, two hundred fifty-five thousand, three hundred sixty-one".