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30140050 = 252602801
BaseRepresentation
bin111001011111…
…0011010010010
32002201021101011
41302332122102
530203440200
62554001134
7514120603
oct162763222
962637334
1030140050
1116016736
12a1161aa
136323965
144007daa
1529a55ba
hex1cbe692

30140050 has 12 divisors (see below), whose sum is σ = 56060586. Its totient is φ = 12056000.

The previous prime is 30140041. The next prime is 30140057. The reversal of 30140050 is 5004103.

It can be written as a sum of positive squares in 3 ways, for example, as 29235649 + 904401 = 5407^2 + 951^2 .

It is a super-2 number, since 2×301400502 = 1816845228005000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30140050.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 301351 + ... + 301450.

Almost surely, 230140050 is an apocalyptic number.

30140050 is a deficient number, since it is larger than the sum of its proper divisors (25920536).

30140050 is a wasteful number, since it uses less digits than its factorization.

30140050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602813 (or 602808 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 30140050 is about 5489.9954462640. The cubic root of 30140050 is about 311.2060200328.

Adding to 30140050 its reverse (5004103), we get a palindrome (35144153).

The spelling of 30140050 in words is "thirty million, one hundred forty thousand, fifty".

Divisors: 1 2 5 10 25 50 602801 1205602 3014005 6028010 15070025 30140050