Search a number
-
+
207252071 = 1315942467
BaseRepresentation
bin11000101101001…
…10101001100111
3112102222111101122
430112212221213
5411024031241
632322044155
75064420305
oct1426465147
9472874348
10207252071
11a6a96604
12594a965b
1333c26180
141d74d275
15132dd04b
hexc5a6a67

207252071 has 4 divisors (see below), whose sum is σ = 223194552. Its totient is φ = 191309592.

The previous prime is 207252029. The next prime is 207252109. The reversal of 207252071 is 170252702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170252702 = 285126351.

It is a cyclic number.

It is not a de Polignac number, because 207252071 - 210 = 207251047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 207252071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207252271) 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, 7971221 + ... + 7971246.

It is an arithmetic number, because the mean of its divisors is an integer number (55798638).

Almost surely, 2207252071 is an apocalyptic number.

207252071 is a deficient number, since it is larger than the sum of its proper divisors (15942481).

207252071 is a wasteful number, since it uses less digits than its factorization.

207252071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15942480.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 207252071 is about 14396.2519775114. The cubic root of 207252071 is about 591.7881887355.

The spelling of 207252071 in words is "two hundred seven million, two hundred fifty-two thousand, seventy-one".

Divisors: 1 13 15942467 207252071