Search a number
-
+
2505000140 = 225463727011
BaseRepresentation
bin1001010101001111…
…0100010011001100
320110120121012011222
42111103310103030
520112240001030
61052322502512
7116035102256
oct22523642314
96416535158
102505000140
111076009755
1259ab04a38
1330bc90306
1419a992cd6
15e9db73e5
hex954f44cc

2505000140 has 24 divisors (see below), whose sum is σ = 5261829552. Its totient is φ = 1001746880.

The previous prime is 2505000119. The next prime is 2505000143. The reversal of 2505000140 is 410005052.

It is not an unprimeable number, because it can be changed into a prime (2505000143) 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, 79235 + ... + 106245.

It is an arithmetic number, because the mean of its divisors is an integer number (219242898).

Almost surely, 22505000140 is an apocalyptic number.

2505000140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2505000140 is an abundant number, since it is smaller than the sum of its proper divisors (2756829412).

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

2505000140 is a wasteful number, since it uses less digits than its factorization.

2505000140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31657 (or 31655 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2505000140 is about 50049.9764235709. The cubic root of 2505000140 is about 1358.1130369359.

Adding to 2505000140 its reverse (410005052), we get a palindrome (2915005192).

The spelling of 2505000140 in words is "two billion, five hundred five million, one hundred forty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 4637 9274 18548 23185 27011 46370 54022 92740 108044 135055 270110 540220 125250007 250500014 501000028 626250035 1252500070 2505000140