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4125100261 = 7952216459
BaseRepresentation
bin1111010111100000…
…0000100011100101
3101122111002210202011
43311320000203211
531422011202021
61521155114221
7204136526242
oct36570004345
911574083664
104125100261
111827569977
129715a2971
13509812c39
142b1bda5c9
15192236de1
hexf5e008e5

4125100261 has 4 divisors (see below), whose sum is σ = 4177316800. Its totient is φ = 4072883724.

The previous prime is 4125100247. The next prime is 4125100267. The reversal of 4125100261 is 1620015214.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4125100261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4125100267) 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, 26108151 + ... + 26108308.

It is an arithmetic number, because the mean of its divisors is an integer number (1044329200).

Almost surely, 24125100261 is an apocalyptic number.

It is an amenable number.

4125100261 is a deficient number, since it is larger than the sum of its proper divisors (52216539).

4125100261 is an equidigital number, since it uses as much as digits as its factorization.

4125100261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52216538.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 4125100261 is about 64226.9434194093. The cubic root of 4125100261 is about 1603.7801584522.

Adding to 4125100261 its reverse (1620015214), we get a palindrome (5745115475).

The spelling of 4125100261 in words is "four billion, one hundred twenty-five million, one hundred thousand, two hundred sixty-one".

Divisors: 1 79 52216459 4125100261