Search a number
-
+
1031130212 = 227181203459
BaseRepresentation
bin111101011101011…
…100110001100100
32122212020211201212
4331131130301210
54102432131322
6250152410552
734360314350
oct7535346144
92585224655
101031130212
1148a056432
122493a6a58
13135819728
149ad32460
15607d00e2
hex3d75cc64

1031130212 has 24 divisors (see below), whose sum is σ = 2073664320. Its totient is φ = 439469280.

The previous prime is 1031130193. The next prime is 1031130259. The reversal of 1031130212 is 2120311301.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 96662 + ... + 106797.

It is an arithmetic number, because the mean of its divisors is an integer number (86402680).

Almost surely, 21031130212 is an apocalyptic number.

It is an amenable number.

1031130212 is an abundant number, since it is smaller than the sum of its proper divisors (1042534108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031130212 is a wasteful number, since it uses less digits than its factorization.

1031130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203651 (or 203649 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1031130212 is about 32111.2162958677. The cubic root of 1031130212 is about 1010.2708850905.

Adding to 1031130212 its reverse (2120311301), we get a palindrome (3151441513).

The spelling of 1031130212 in words is "one billion, thirty-one million, one hundred thirty thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 181 362 724 1267 2534 5068 203459 406918 813836 1424213 2848426 5696852 36826079 73652158 147304316 257782553 515565106 1031130212