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1040161047 = 31392494391
BaseRepresentation
bin111101111111111…
…001100100010111
32200111020122201020
4331333321210113
54112240123142
6251114132223
734530136332
oct7577714427
92614218636
101040161047
11494164432
12250421073
1313765c113
149c203619
15614b5cec
hex3dff9917

1040161047 has 8 divisors (see below), whose sum is σ = 1396859520. Its totient is φ = 688451640.

The previous prime is 1040161007. The next prime is 1040161049. The reversal of 1040161047 is 7401610401.

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

It is not a de Polignac number, because 1040161047 - 226 = 973052183 is a prime.

It is a super-2 number, since 2×10401610472 = 2163870007392272418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040161049) 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, 1246779 + ... + 1247612.

It is an arithmetic number, because the mean of its divisors is an integer number (174607440).

Almost surely, 21040161047 is an apocalyptic number.

1040161047 is a deficient number, since it is larger than the sum of its proper divisors (356698473).

1040161047 is a wasteful number, since it uses less digits than its factorization.

1040161047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494533.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1040161047 is about 32251.5278242752. The cubic root of 1040161047 is about 1013.2116980064.

Adding to 1040161047 its reverse (7401610401), we get a palindrome (8441771448).

The spelling of 1040161047 in words is "one billion, forty million, one hundred sixty-one thousand, forty-seven".

Divisors: 1 3 139 417 2494391 7483173 346720349 1040161047