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1041220431 = 32115691159
BaseRepresentation
bin111110000011111…
…100001101001111
32200120020110220200
4332003330031033
54113023023211
6251152544543
734542141036
oct7603741517
92616213820
101041220431
11494818359
12250852153
13137940384
149c3db71d
1561624b56
hex3e0fc34f

1041220431 has 6 divisors (see below), whose sum is σ = 1503985080. Its totient is φ = 694146948.

The previous prime is 1041220409. The next prime is 1041220487. The reversal of 1041220431 is 1340221401.

1041220431 is a `hidden beast` number, since 10 + 4 + 1 + 220 + 431 = 666.

It is not a de Polignac number, because 1041220431 - 25 = 1041220399 is a prime.

It is a super-2 number, since 2×10412204312 = 2168279971863651522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1041220231) 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, 57845571 + ... + 57845588.

It is an arithmetic number, because the mean of its divisors is an integer number (250664180).

Almost surely, 21041220431 is an apocalyptic number.

1041220431 is a deficient number, since it is larger than the sum of its proper divisors (462764649).

1041220431 is a wasteful number, since it uses less digits than its factorization.

1041220431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115691165 (or 115691162 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1041220431 is about 32267.9474246504. The cubic root of 1041220431 is about 1013.5555601628. Note that the first 4 decimals are identical.

Adding to 1041220431 its reverse (1340221401), we get a palindrome (2381441832).

The spelling of 1041220431 in words is "one billion, forty-one million, two hundred twenty thousand, four hundred thirty-one".

Divisors: 1 3 9 115691159 347073477 1041220431