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10144454461 = 18379551959
BaseRepresentation
bin10010111001010100…
…00001011100111101
3222011222120200101121
421130222001130331
5131233440020321
64354342510541
7506250303661
oct113452013475
928158520347
1010144454461
114336309869
121b71435451
13c588c719b
146c34068a1
153e58e4441
hex25ca8173d

10144454461 has 4 divisors (see below), whose sum is σ = 10145024800. Its totient is φ = 10143884124.

The previous prime is 10144454399. The next prime is 10144454473. The reversal of 10144454461 is 16445444101.

10144454461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16445444101 = 44683368047.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10144454461 is a prime.

It is a super-2 number, since 2×101444544612 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10144454861) 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, 257601 + ... + 294358.

It is an arithmetic number, because the mean of its divisors is an integer number (2536256200).

Almost surely, 210144454461 is an apocalyptic number.

It is an amenable number.

10144454461 is a deficient number, since it is larger than the sum of its proper divisors (570339).

10144454461 is an equidigital number, since it uses as much as digits as its factorization.

10144454461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570338.

The product of its (nonzero) digits is 30720, while the sum is 34.

Adding to 10144454461 its reverse (16445444101), we get a palindrome (26589898562).

The spelling of 10144454461 in words is "ten billion, one hundred forty-four million, four hundred fifty-four thousand, four hundred sixty-one".

Divisors: 1 18379 551959 10144454461