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10121157941 = 88111488261
BaseRepresentation
bin10010110110100010…
…01001110100110101
3222010100202002120112
421123101021310311
5131212004023231
64352151312405
7505545265046
oct113321116465
928110662515
1010121157941
114324147844
121b6567b705
13c53b2b46b
146c02a08cd
153e384192b
hex25b449d35

10121157941 has 4 divisors (see below), whose sum is σ = 10132647084. Its totient is φ = 10109668800.

The previous prime is 10121157911. The next prime is 10121157967. The reversal of 10121157941 is 14975112101.

10121157941 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 an emirpimes, since its reverse is a distinct semiprime: 14975112101 = 61245493641.

It can be written as a sum of positive squares in 2 ways, for example, as 2646690916 + 7474467025 = 51446^2 + 86455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10121157941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10121157898 and 10121157907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121157911) 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, 5743250 + ... + 5745011.

It is an arithmetic number, because the mean of its divisors is an integer number (2533161771).

Almost surely, 210121157941 is an apocalyptic number.

It is an amenable number.

10121157941 is a deficient number, since it is larger than the sum of its proper divisors (11489143).

10121157941 is an equidigital number, since it uses as much as digits as its factorization.

10121157941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11489142.

The product of its (nonzero) digits is 2520, while the sum is 32.

The spelling of 10121157941 in words is "ten billion, one hundred twenty-one million, one hundred fifty-seven thousand, nine hundred forty-one".

Divisors: 1 881 11488261 10121157941