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3040043231 = 7127426553
BaseRepresentation
bin1011010100110011…
…0110000011011111
321211212101012022202
42311030312003133
522211222340411
61221354402115
7135222640541
oct26514660337
97755335282
103040043231
111320030525
1270a13033b
13395a94964
1420ba6b691
1512bd5383b
hexb53360df

3040043231 has 4 divisors (see below), whose sum is σ = 3040476912. Its totient is φ = 3039609552.

The previous prime is 3040043213. The next prime is 3040043261. The reversal of 3040043231 is 1323400403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1323400403 = 13101800031.

It is a cyclic number.

It is not a de Polignac number, because 3040043231 - 210 = 3040042207 is a prime.

It is a super-2 number, since 2×30400432312 = 18483725692697838722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3040043261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206150 + ... + 220403.

It is an arithmetic number, because the mean of its divisors is an integer number (760119228).

Almost surely, 23040043231 is an apocalyptic number.

3040043231 is a deficient number, since it is larger than the sum of its proper divisors (433681).

3040043231 is an equidigital number, since it uses as much as digits as its factorization.

3040043231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433680.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3040043231 is about 55136.5870452642. The cubic root of 3040043231 is about 1448.6381555176.

Adding to 3040043231 its reverse (1323400403), we get a palindrome (4363443634).

The spelling of 3040043231 in words is "three billion, forty million, forty-three thousand, two hundred thirty-one".

Divisors: 1 7127 426553 3040043231