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1057148841 = 3750340421
BaseRepresentation
bin111111000000101…
…100111110101001
32201200012201120210
4333000230332221
54131112230331
6252522211333
735124421410
oct7700547651
92650181523
101057148841
114a2807631
12256053b49
1313b029478
14a0586477
1562c1e446
hex3f02cfa9

1057148841 has 8 divisors (see below), whose sum is σ = 1610893504. Its totient is φ = 604085040.

The previous prime is 1057148837. The next prime is 1057148929. The reversal of 1057148841 is 1488417501.

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

It is not a de Polignac number, because 1057148841 - 22 = 1057148837 is a prime.

It is a super-2 number, since 2×10571488412 = 2235127344055286562, 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 1057148841.

It is not an unprimeable number, because it can be changed into a prime (1057148821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25170190 + ... + 25170231.

It is an arithmetic number, because the mean of its divisors is an integer number (201361688).

Almost surely, 21057148841 is an apocalyptic number.

It is an amenable number.

1057148841 is a deficient number, since it is larger than the sum of its proper divisors (553744663).

1057148841 is an equidigital number, since it uses as much as digits as its factorization.

1057148841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50340431.

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 1057148841 is about 32513.8253824431. The cubic root of 1057148841 is about 1018.6978259955.

The spelling of 1057148841 in words is "one billion, fifty-seven million, one hundred forty-eight thousand, eight hundred forty-one".

Divisors: 1 3 7 21 50340421 151021263 352382947 1057148841