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207616013 = 1118874183
BaseRepresentation
bin11000101111111…
…11100000001101
3112110122222121222
430113333200031
5411122203023
632333533125
75100464333
oct1427774015
9473588558
10207616013
11a7214a90
12596441a5
1334022a17
141d805b53
1513360cc8
hexc5ff80d

207616013 has 4 divisors (see below), whose sum is σ = 226490208. Its totient is φ = 188741820.

The previous prime is 207615953. The next prime is 207616027. The reversal of 207616013 is 310616702.

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 not a de Polignac number, because 207616013 - 214 = 207599629 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 (207616043) 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, 9437081 + ... + 9437102.

It is an arithmetic number, because the mean of its divisors is an integer number (56622552).

Almost surely, 2207616013 is an apocalyptic number.

It is an amenable number.

207616013 is a deficient number, since it is larger than the sum of its proper divisors (18874195).

207616013 is a wasteful number, since it uses less digits than its factorization.

207616013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18874194.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 207616013 is about 14408.8865982074. The cubic root of 207616013 is about 592.1343865309.

The spelling of 207616013 in words is "two hundred seven million, six hundred sixteen thousand, thirteen".

Divisors: 1 11 18874183 207616013