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10144828649 = 88111515129
BaseRepresentation
bin10010111001010110…
…11100110011101001
3222012000021200200102
421130223130303221
5131234034004044
64354354515145
7506253422624
oct113453346351
928160250612
1010144828649
114336544a0a
121b71595ab5
13c589c85b7
146c34a2dbb
153e596a24e
hex25cadcce9

10144828649 has 4 divisors (see below), whose sum is σ = 10156344660. Its totient is φ = 10133312640.

The previous prime is 10144828643. The next prime is 10144828663. The reversal of 10144828649 is 94682844101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1737222400 + 8407606249 = 41680^2 + 91693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10144828649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10144828643) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5756684 + ... + 5758445.

It is an arithmetic number, because the mean of its divisors is an integer number (2539086165).

Almost surely, 210144828649 is an apocalyptic number.

It is an amenable number.

10144828649 is a deficient number, since it is larger than the sum of its proper divisors (11516011).

10144828649 is an equidigital number, since it uses as much as digits as its factorization.

10144828649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11516010.

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 10144828649 in words is "ten billion, one hundred forty-four million, eight hundred twenty-eight thousand, six hundred forty-nine".

Divisors: 1 881 11515129 10144828649