Search a number
-
+
1102031988 = 223791162481
BaseRepresentation
bin100000110101111…
…1010110001110100
32211210200000200120
41001223322301310
54224110010423
6301204211540
736211055151
oct10153726164
92753600616
101102031988
11516082a42
12269099bb0
13147412845
14a650b228
1566b37ee3
hex41afac74

1102031988 has 24 divisors (see below), whose sum is σ = 2603959680. Its totient is φ = 362693760.

The previous prime is 1102031981. The next prime is 1102032007. The reversal of 1102031988 is 8891302011.

1102031988 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102031981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580293 + ... + 582188.

It is an arithmetic number, because the mean of its divisors is an integer number (108498320).

Almost surely, 21102031988 is an apocalyptic number.

It is an amenable number.

1102031988 is an abundant number, since it is smaller than the sum of its proper divisors (1501927692).

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

1102031988 is a wasteful number, since it uses less digits than its factorization.

1102031988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162567 (or 1162565 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 1102031988 is about 33196.8671413433. The cubic root of 1102031988 is about 1032.9153550132.

Adding to 1102031988 its reverse (8891302011), we get a palindrome (9993333999).

The spelling of 1102031988 in words is "one billion, one hundred two million, thirty-one thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 79 158 237 316 474 948 1162481 2324962 3487443 4649924 6974886 13949772 91835999 183671998 275507997 367343996 551015994 1102031988