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1074217681 = 29208317783
BaseRepresentation
bin100000000000111…
…0100001011010001
32202212022220122001
41000001310023101
54144444431211
6254332114001
735422461655
oct10001641321
92685286561
101074217681
11501405709
1225b905901
13141724684
14a294aa65
1564491ac1
hex400742d1

1074217681 has 8 divisors (see below), whose sum is σ = 1111855680. Its totient is φ = 1036619472.

The previous prime is 1074217679. The next prime is 1074217769. The reversal of 1074217681 is 1867124701.

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 1074217681 - 21 = 1074217679 is a prime.

It is a super-2 number, since 2×10742176812 = 2307887252346035522, which contains 22 as substring.

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 1074217681.

It is not an unprimeable number, because it can be changed into a prime (1074217601) 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, 51516 + ... + 69298.

It is an arithmetic number, because the mean of its divisors is an integer number (138981960).

Almost surely, 21074217681 is an apocalyptic number.

It is an amenable number.

1074217681 is a deficient number, since it is larger than the sum of its proper divisors (37637999).

1074217681 is a wasteful number, since it uses less digits than its factorization.

1074217681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19895.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 1074217681 is about 32775.2601972891. The cubic root of 1074217681 is about 1024.1512485253.

The spelling of 1074217681 in words is "one billion, seventy-four million, two hundred seventeen thousand, six hundred eighty-one".

Divisors: 1 29 2083 17783 60407 515707 37041989 1074217681