Search a number
-
+
2402145 = 32553381
BaseRepresentation
bin1001001010011101100001
311112001010100
421022131201
51103332040
6123253013
726263224
oct11123541
94461110
102402145
1113a0849
1297a169
136614b5
144675bb
15326b30
hex24a761

2402145 has 12 divisors (see below), whose sum is σ = 4163796. Its totient is φ = 1281120.

The previous prime is 2402107. The next prime is 2402161. The reversal of 2402145 is 5412042.

It can be written as a sum of positive squares in 2 ways, for example, as 571536 + 1830609 = 756^2 + 1353^2 .

It is not a de Polignac number, because 2402145 - 218 = 2140001 is a prime.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26646 + ... + 26735.

It is an arithmetic number, because the mean of its divisors is an integer number (346983).

22402145 is an apocalyptic number.

It is an amenable number.

2402145 is a deficient number, since it is larger than the sum of its proper divisors (1761651).

2402145 is a wasteful number, since it uses less digits than its factorization.

2402145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53392 (or 53389 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2402145 is about 1549.8854796404. The cubic root of 2402145 is about 133.9264651859.

Adding to 2402145 its reverse (5412042), we get a palindrome (7814187).

The spelling of 2402145 in words is "two million, four hundred two thousand, one hundred forty-five".

Divisors: 1 3 5 9 15 45 53381 160143 266905 480429 800715 2402145