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207240808 = 23163158927
BaseRepresentation
bin11000101101000…
…11111001101000
3112102221220221111
430112203321220
5411023201213
632321520104
75064342415
oct1426437150
9472856844
10207240808
11a6a890a5
12594a3034
1333c20cc8
141d74910c
15132d9a3d
hexc5a3e68

207240808 has 16 divisors (see below), whose sum is σ = 390962880. Its totient is φ = 102984048.

The previous prime is 207240793. The next prime is 207240823. The reversal of 207240808 is 808042702.

207240808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (207240793) and next prime (207240823).

It is a self number, because there is not a number n which added to its sum of digits gives 207240808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78160 + ... + 80767.

It is an arithmetic number, because the mean of its divisors is an integer number (24435180).

Almost surely, 2207240808 is an apocalyptic number.

It is an amenable number.

207240808 is a deficient number, since it is larger than the sum of its proper divisors (183722072).

207240808 is a wasteful number, since it uses less digits than its factorization.

207240808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159096 (or 159092 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 207240808 is about 14395.8607939921. The cubic root of 207240808 is about 591.7774684066. Note that the first 3 decimals are identical.

The spelling of 207240808 in words is "two hundred seven million, two hundred forty thousand, eight hundred eight".

Divisors: 1 2 4 8 163 326 652 1304 158927 317854 635708 1271416 25905101 51810202 103620404 207240808