Search a number
-
+
207120012 = 223118831777
BaseRepresentation
bin11000101100001…
…10011010001100
3112102201210020120
430112012122030
5411010320022
632315144540
75063330301
oct1426063214
9472653216
10207120012
11a6a06370
1259445150
1333bab028
141d7170a8
15132b3d5c
hexc58668c

207120012 has 48 divisors (see below), whose sum is σ = 528108672. Its totient is φ = 62657280.

The previous prime is 207119989. The next prime is 207120019. The reversal of 207120012 is 210021702.

207120012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 207119973 and 207120000.

It is not an unprimeable number, because it can be changed into a prime (207120019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115668 + ... + 117444.

It is an arithmetic number, because the mean of its divisors is an integer number (11002264).

Almost surely, 2207120012 is an apocalyptic number.

207120012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

207120012 is an abundant number, since it is smaller than the sum of its proper divisors (320988660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

207120012 is a wasteful number, since it uses less digits than its factorization.

207120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2678 (or 2676 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 207120012 is about 14391.6646709128. The cubic root of 207120012 is about 591.6624681401.

Adding to 207120012 its reverse (210021702), we get a palindrome (417141714).

The spelling of 207120012 in words is "two hundred seven million, one hundred twenty thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 883 1766 1777 2649 3532 3554 5298 5331 7108 9713 10596 10662 19426 19547 21324 29139 38852 39094 58278 58641 78188 116556 117282 234564 1569091 3138182 4707273 6276364 9414546 17260001 18829092 34520002 51780003 69040004 103560006 207120012