Search a number
-
+
103131464 = 2312891433
BaseRepresentation
bin1100010010110…
…10100101001000
321012001121202212
412021122211020
5202400201324
614122244252
72361413552
oct611324510
9235047685
10103131464
1153240217
122a656688
131849bc47
14d9a84d2
1590c270e
hex625a948

103131464 has 8 divisors (see below), whose sum is σ = 193371510. Its totient is φ = 51565728.

The previous prime is 103131461. The next prime is 103131491. The reversal of 103131464 is 464131301.

It can be written as a sum of positive squares in only one way, i.e., 55383364 + 47748100 = 7442^2 + 6910^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (103131461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6445709 + ... + 6445724.

Almost surely, 2103131464 is an apocalyptic number.

It is an amenable number.

103131464 is a deficient number, since it is larger than the sum of its proper divisors (90240046).

103131464 is a wasteful number, since it uses less digits than its factorization.

103131464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12891439 (or 12891435 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 103131464 is about 10155.3662661669. The cubic root of 103131464 is about 468.9541616374.

Adding to 103131464 its reverse (464131301), we get a palindrome (567262765).

The spelling of 103131464 in words is "one hundred three million, one hundred thirty-one thousand, four hundred sixty-four".

Divisors: 1 2 4 8 12891433 25782866 51565732 103131464