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1041745645 = 5257810697
BaseRepresentation
bin111110000101111…
…100011011101101
32200121020011101001
4332011330123231
54113141330040
6251212120301
734546456213
oct7605743355
92617204331
101041745645
11495046a16
12250a66091
13137a95455
149c4d6cb3
15616ca59a
hex3e17c6ed

1041745645 has 8 divisors (see below), whose sum is σ = 1254960504. Its totient is φ = 830152704.

The previous prime is 1041745633. The next prime is 1041745651. The reversal of 1041745645 is 5465471401.

It can be written as a sum of positive squares in 4 ways, for example, as 591754276 + 449991369 = 24326^2 + 21213^2 .

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 1041745645 - 215 = 1041712877 is a prime.

It is a super-3 number, since 3×10417456453 (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404064 + ... + 406633.

It is an arithmetic number, because the mean of its divisors is an integer number (156870063).

Almost surely, 21041745645 is an apocalyptic number.

It is an amenable number.

1041745645 is a deficient number, since it is larger than the sum of its proper divisors (213214859).

1041745645 is an equidigital number, since it uses as much as digits as its factorization.

1041745645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810959.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 1041745645 is about 32276.0847222832. The cubic root of 1041745645 is about 1013.7259512642.

The spelling of 1041745645 in words is "one billion, forty-one million, seven hundred forty-five thousand, six hundred forty-five".

Divisors: 1 5 257 1285 810697 4053485 208349129 1041745645