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252000101 = 317794953
BaseRepresentation
bin11110000010100…
…11011101100101
3122120011221011002
433001103131211
51004003000401
641001123045
76146652113
oct1701233545
9576157132
10252000101
1111a27a451
1270489485
1340292bb2
142567aab3
15171cba6b
hexf053765

252000101 has 4 divisors (see below), whose sum is σ = 252795372. Its totient is φ = 251204832.

The previous prime is 252000079. The next prime is 252000103. The reversal of 252000101 is 101000252.

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 97022500 + 154977601 = 9850^2 + 12449^2 .

It is a cyclic number.

It is not a de Polignac number, because 252000101 - 26 = 252000037 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 (252000103) 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, 397160 + ... + 397793.

It is an arithmetic number, because the mean of its divisors is an integer number (63198843).

Almost surely, 2252000101 is an apocalyptic number.

It is an amenable number.

252000101 is a deficient number, since it is larger than the sum of its proper divisors (795271).

252000101 is an equidigital number, since it uses as much as digits as its factorization.

252000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795270.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 252000101 is about 15874.5110475882. The cubic root of 252000101 is about 631.6360441509.

Adding to 252000101 its reverse (101000252), we get a palindrome (353000353).

The spelling of 252000101 in words is "two hundred fifty-two million, one hundred one", and thus it is an aban number.

Divisors: 1 317 794953 252000101