Search a number
-
+
12152012223270 = 2351011140062019
BaseRepresentation
bin1011000011010101110001…
…0111110011001100100110
31121000201110121220011001210
42300311130113303030212
53043044310112121040
641502320215332250
72362645122414633
oct260653427631446
947021417804053
1012152012223270
113965704109097
121443184381086
136a1c11b05baa
143002366cb18a
1516117d4c9480
hexb0d5c5f3326

12152012223270 has 32 divisors (see below), whose sum is σ = 29167714529280. Its totient is φ = 3240216015840.

The previous prime is 12152012223229. The next prime is 12152012223277. The reversal of 12152012223270 is 7232221025121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152012223277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19727680 + ... + 20334339.

It is an arithmetic number, because the mean of its divisors is an integer number (911491079040).

Almost surely, 212152012223270 is an apocalyptic number.

12152012223270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12152012223270 is an abundant number, since it is smaller than the sum of its proper divisors (17015702306010).

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

12152012223270 is a wasteful number, since it uses less digits than its factorization.

12152012223270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40072140.

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 12152012223270 its reverse (7232221025121), we get a palindrome (19384233248391).

The spelling of 12152012223270 in words is "twelve trillion, one hundred fifty-two billion, twelve million, two hundred twenty-three thousand, two hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 10111 20222 30333 50555 60666 101110 151665 303330 40062019 80124038 120186057 200310095 240372114 400620190 600930285 1201860570 405067074109 810134148218 1215201222327 2025335370545 2430402444654 4050670741090 6076006111635 12152012223270