Search a number
-
+
2490870189 = 319672392729
BaseRepresentation
bin1001010001110111…
…1010100110101101
320102121000022112110
42110131322212231
520100130321224
61051055554233
7115504022133
oct22435724655
96377008473
102490870189
111069038705
1259622b979
133090839b2
14198b55753
15e8a25929
hex9477a9ad

2490870189 has 32 divisors (see below), whose sum is σ = 3564288000. Its totient is φ = 1542651264.

The previous prime is 2490870149. The next prime is 2490870191. The reversal of 2490870189 is 9810780942.

It is not a de Polignac number, because 2490870189 - 29 = 2490869677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490870149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 911377 + ... + 914105.

It is an arithmetic number, because the mean of its divisors is an integer number (111384000).

Almost surely, 22490870189 is an apocalyptic number.

It is an amenable number.

2490870189 is a deficient number, since it is larger than the sum of its proper divisors (1073417811).

2490870189 is a wasteful number, since it uses less digits than its factorization.

2490870189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 2490870189 is about 49908.6183840026. The cubic root of 2490870189 is about 1355.5546517211.

The spelling of 2490870189 in words is "two billion, four hundred ninety million, eight hundred seventy thousand, one hundred eighty-nine".

Divisors: 1 3 19 57 67 201 239 717 1273 2729 3819 4541 8187 13623 16013 48039 51851 155553 182843 304247 548529 652231 912741 1956693 3474017 10422051 12392389 37177167 43699477 131098431 830290063 2490870189