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1004712641 = 1987505643
BaseRepresentation
bin111011111000101…
…011001011000001
32121000112200122022
4323320223023001
54024201301031
6243410251225
733616626242
oct7370531301
92530480568
101004712641
11476152529
12240586b15
131301ca22a
1497616cc9
155d31297b
hex3be2b2c1

1004712641 has 4 divisors (see below), whose sum is σ = 1005220272. Its totient is φ = 1004205012.

The previous prime is 1004712617. The next prime is 1004712659. The reversal of 1004712641 is 1462174001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1004712641 - 218 = 1004450497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1004712641.

It is not an unprimeable number, because it can be changed into a prime (1004712661) 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, 250835 + ... + 254808.

It is an arithmetic number, because the mean of its divisors is an integer number (251305068).

Almost surely, 21004712641 is an apocalyptic number.

It is an amenable number.

1004712641 is a deficient number, since it is larger than the sum of its proper divisors (507631).

1004712641 is an equidigital number, since it uses as much as digits as its factorization.

1004712641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507630.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1004712641 is about 31697.2024159862. The cubic root of 1004712641 is about 1001.5684191088.

Adding to 1004712641 its reverse (1462174001), we get a palindrome (2466886642).

The spelling of 1004712641 in words is "one billion, four million, seven hundred twelve thousand, six hundred forty-one".

Divisors: 1 1987 505643 1004712641