[go: up one dir, main page]

Search a number
-
+
2131476890 = 25436537591
BaseRepresentation
bin111111100001011…
…1100000110011010
312111112202020121112
41333002330012122
513331124230030
6551300540322
7103551153224
oct17702740632
95445666545
102131476890
119a4188154
124b59b16a2
1327c78c13a
14163121414
15c71d3a95
hex7f0bc19a

2131476890 has 32 divisors (see below), whose sum is σ = 3932413056. Its totient is φ = 831378240.

The previous prime is 2131476877. The next prime is 2131476899. The reversal of 2131476890 is 986741312.

It is not an unprimeable number, because it can be changed into a prime (2131476899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276995 + ... + 284585.

It is an arithmetic number, because the mean of its divisors is an integer number (122887908).

Almost surely, 22131476890 is an apocalyptic number.

2131476890 is a deficient number, since it is larger than the sum of its proper divisors (1800936166).

2131476890 is a wasteful number, since it uses less digits than its factorization.

2131476890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8294.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 2131476890 is about 46167.9205726227. The cubic root of 2131476890 is about 1286.9456593708.

The spelling of 2131476890 in words is "two billion, one hundred thirty-one million, four hundred seventy-six thousand, eight hundred ninety".

Divisors: 1 2 5 10 43 86 215 430 653 1306 3265 6530 7591 15182 28079 37955 56158 75910 140395 280790 326413 652826 1632065 3264130 4956923 9913846 24784615 49569230 213147689 426295378 1065738445 2131476890