Search a number
-
+
101402761 = 868111681
BaseRepresentation
bin1100000101101…
…00100010001001
321001210210102211
412002310202021
5201424342021
614021225121
72340623605
oct602644211
9231723384
10101402761
115226a439
1229b621a1
1318015145
14d678505
158d803e1
hex60b4889

101402761 has 4 divisors (see below), whose sum is σ = 101423124. Its totient is φ = 101382400.

The previous prime is 101402737. The next prime is 101402771. The reversal of 101402761 is 167204101.

Adding to 101402761 its reverse (167204101), we get a palindrome (268606862).

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 68558400 + 32844361 = 8280^2 + 5731^2 .

It is a cyclic number.

It is not a de Polignac number, because 101402761 - 27 = 101402633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101402701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2841 + ... + 14521.

It is an arithmetic number, because the mean of its divisors is an integer number (25355781).

It is a 4980-hyperperfect number.

Almost surely, 2101402761 is an apocalyptic number.

It is an amenable number.

101402761 is a deficient number, since it is larger than the sum of its proper divisors (20363).

101402761 is an equidigital number, since it uses as much as digits as its factorization.

101402761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20362.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 101402761 is about 10069.8937928858. The cubic root of 101402761 is about 466.3191600552.

The spelling of 101402761 in words is "one hundred one million, four hundred two thousand, seven hundred sixty-one".

Divisors: 1 8681 11681 101402761