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3040020431 = 72771567829
BaseRepresentation
bin1011010100110011…
…0000011111001111
321211212100001001022
42311030300133033
522211221123211
61221354104355
7135222514220
oct26514603717
97755301038
103040020431
111320015388
1270a11b0bb
13395a87476
1420ba63247
1512bd4bbdb
hexb53307cf

3040020431 has 8 divisors (see below), whose sum is σ = 3486853920. Its totient is φ = 2596323168.

The previous prime is 3040020421. The next prime is 3040020443. The reversal of 3040020431 is 1340200403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3040020431 - 230 = 1966278607 is a prime.

It is a super-2 number, since 2×30400204312 = 18483448441794851522, 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 (3040020421) 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, 781976 + ... + 785853.

It is an arithmetic number, because the mean of its divisors is an integer number (435856740).

Almost surely, 23040020431 is an apocalyptic number.

3040020431 is a deficient number, since it is larger than the sum of its proper divisors (446833489).

3040020431 is a wasteful number, since it uses less digits than its factorization.

3040020431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568113.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 3040020431 is about 55136.3802856154. The cubic root of 3040020431 is about 1448.6345339646.

Adding to 3040020431 its reverse (1340200403), we get a palindrome (4380220834).

The spelling of 3040020431 in words is "three billion, forty million, twenty thousand, four hundred thirty-one".

Divisors: 1 7 277 1939 1567829 10974803 434288633 3040020431