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12120152 = 2311433203
BaseRepresentation
bin101110001111…
…000001011000
3211210202201112
4232033001120
511100321102
61111435452
7205006502
oct56170130
924722645
1012120152
116929060
124085b88
1326848b5
141876d72
1510e6252
hexb8f058

12120152 has 32 divisors (see below), whose sum is σ = 25375680. Its totient is φ = 5379360.

The previous prime is 12120091. The next prime is 12120179. The reversal of 12120152 is 25102121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2183 + ... + 5385.

It is an arithmetic number, because the mean of its divisors is an integer number (792990).

Almost surely, 212120152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12120152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12687840).

12120152 is an abundant number, since it is smaller than the sum of its proper divisors (13255528).

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

12120152 is a wasteful number, since it uses less digits than its factorization.

12120152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263 (or 3259 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 12120152 is about 3481.4008674670. The cubic root of 12120152 is about 229.7044218208.

Adding to 12120152 its reverse (25102121), we get a palindrome (37222273).

It can be divided in two parts, 12120 and 152, that multiplied together give a triangular number (1842240 = T1919).

The spelling of 12120152 in words is "twelve million, one hundred twenty thousand, one hundred fifty-two".

Divisors: 1 2 4 8 11 22 43 44 86 88 172 344 473 946 1892 3203 3784 6406 12812 25624 35233 70466 137729 140932 275458 281864 550916 1101832 1515019 3030038 6060076 12120152