Search a number
-
+
228858977 is a prime number
BaseRepresentation
bin11011010010000…
…01110001100001
3120221122020111102
431221001301201
5432041441402
634413124145
75446161224
oct1551016141
9527566442
10228858977
11108204156
1264789655
133854cb19
14225755bb
151515a102
hexda41c61

228858977 has 2 divisors, whose sum is σ = 228858978. Its totient is φ = 228858976.

The previous prime is 228858941. The next prime is 228859051. The reversal of 228858977 is 779858822.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226924096 + 1934881 = 15064^2 + 1391^2 .

It is a cyclic number.

It is not a de Polignac number, because 228858977 - 224 = 212081761 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228858277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114429488 + 114429489.

It is an arithmetic number, because the mean of its divisors is an integer number (114429489).

Almost surely, 2228858977 is an apocalyptic number.

It is an amenable number.

228858977 is a deficient number, since it is larger than the sum of its proper divisors (1).

228858977 is an equidigital number, since it uses as much as digits as its factorization.

228858977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4515840, while the sum is 56.

The square root of 228858977 is about 15128.0857017668. The cubic root of 228858977 is about 611.6777043729.

The spelling of 228858977 in words is "two hundred twenty-eight million, eight hundred fifty-eight thousand, nine hundred seventy-seven".