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30140435 = 513509911
BaseRepresentation
bin111001011111…
…0100000010011
32002201021220102
41302332200103
530203443220
62554003015
7514121663
oct162764023
962637812
1030140435
1116016a56
12a11646b
136323ba0
1440081a3
1529a5775
hex1cbe813

30140435 has 16 divisors (see below), whose sum is σ = 39070080. Its totient is φ = 22189440.

The previous prime is 30140431. The next prime is 30140449. The reversal of 30140435 is 53404103.

It is not a de Polignac number, because 30140435 - 22 = 30140431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30140431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32630 + ... + 33540.

It is an arithmetic number, because the mean of its divisors is an integer number (2441880).

Almost surely, 230140435 is an apocalyptic number.

30140435 is a deficient number, since it is larger than the sum of its proper divisors (8929645).

30140435 is a wasteful number, since it uses less digits than its factorization.

30140435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30140435 is about 5490.0305099334. The cubic root of 30140435 is about 311.2073451114.

Adding to 30140435 its reverse (53404103), we get a palindrome (83544538).

The spelling of 30140435 in words is "thirty million, one hundred forty thousand, four hundred thirty-five".

Divisors: 1 5 13 65 509 911 2545 4555 6617 11843 33085 59215 463699 2318495 6028087 30140435