Search a number
-
+
1057948379 = 4125803619
BaseRepresentation
bin111111000011110…
…000001011011011
32201201201100100022
4333003300023123
54131313322004
6252551301055
735134261415
oct7703601333
92651640308
101057948379
114a3203304
1225637a78b
1313b249377
14a07139b5
1562d2b2be
hex3f0f02db

1057948379 has 4 divisors (see below), whose sum is σ = 1083752040. Its totient is φ = 1032144720.

The previous prime is 1057948373. The next prime is 1057948433. The reversal of 1057948379 is 9738497501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1057948379 is a prime.

It is a super-2 number, since 2×10579483792 = 2238509545257455282, 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 1057948379.

It is not an unprimeable number, because it can be changed into a prime (1057948373) 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 3 ways as a sum of consecutive naturals, for example, 12901769 + ... + 12901850.

It is an arithmetic number, because the mean of its divisors is an integer number (270938010).

Almost surely, 21057948379 is an apocalyptic number.

1057948379 is a deficient number, since it is larger than the sum of its proper divisors (25803661).

1057948379 is an equidigital number, since it uses as much as digits as its factorization.

1057948379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25803660.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The square root of 1057948379 is about 32526.1184127464. The cubic root of 1057948379 is about 1018.9545802451.

The spelling of 1057948379 in words is "one billion, fifty-seven million, nine hundred forty-eight thousand, three hundred seventy-nine".

Divisors: 1 41 25803619 1057948379