Search a number
-
+
166202144 = 255193817
BaseRepresentation
bin10011110100000…
…00101100100000
3102120201221110222
421322000230200
5320021432034
624254142212
74055460233
oct1172005440
9376657428
10166202144
11858a9149
12477b1968
1328582784
141810541a
15e8d012e
hex9e80b20

166202144 has 12 divisors (see below), whose sum is σ = 327210534. Its totient is φ = 83101056.

The previous prime is 166202111. The next prime is 166202159. The reversal of 166202144 is 441202661.

It can be written as a sum of positive squares in only one way, i.e., 102010000 + 64192144 = 10100^2 + 8012^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2596877 + ... + 2596940.

Almost surely, 2166202144 is an apocalyptic number.

It is an amenable number.

166202144 is a deficient number, since it is larger than the sum of its proper divisors (161008390).

166202144 is an equidigital number, since it uses as much as digits as its factorization.

166202144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193827 (or 5193819 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 166202144 is about 12891.9410485776. The cubic root of 166202144 is about 549.8094590659.

The spelling of 166202144 in words is "one hundred sixty-six million, two hundred two thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 32 5193817 10387634 20775268 41550536 83101072 166202144