Search a number
-
+
118820052 = 223213307827
BaseRepresentation
bin1110001010100…
…00110011010100
322021120200110200
413011100303110
5220404220202
615442420500
72641645101
oct705206324
9267520420
10118820052
116108629a
1233961730
131b802b30
1411acdaa8
15a670e1c
hex7150cd4

118820052 has 72 divisors (see below), whose sum is σ = 324900576. Its totient is φ = 36396864.

The previous prime is 118820017. The next prime is 118820059. The reversal of 118820052 is 250028811.

It is a junction number, because it is equal to n+sod(n) for n = 118819998 and 118820025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118820059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143263 + ... + 144089.

It is an arithmetic number, because the mean of its divisors is an integer number (4512508).

Almost surely, 2118820052 is an apocalyptic number.

118820052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118820052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162450288).

118820052 is an abundant number, since it is smaller than the sum of its proper divisors (206080524).

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

118820052 is a wasteful number, since it uses less digits than its factorization.

118820052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 118820052 is about 10900.4610911649. The cubic root of 118820052 is about 491.6204191043.

Adding to 118820052 its reverse (250028811), we get a palindrome (368848863).

The spelling of 118820052 in words is "one hundred eighteen million, eight hundred twenty thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 307 468 614 827 921 1228 1654 1842 2481 2763 3308 3684 3991 4962 5526 7443 7982 9924 10751 11052 11973 14886 15964 21502 23946 29772 32253 35919 43004 47892 64506 71838 96759 129012 143676 193518 253889 387036 507778 761667 1015556 1523334 2285001 3046668 3300557 4570002 6601114 9140004 9901671 13202228 19803342 29705013 39606684 59410026 118820052