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12072030 = 2351921179
BaseRepresentation
bin101110000011…
…010001011110
3211201022201020
4232003101132
511042301110
61110425010
7204416265
oct56032136
924638636
1012072030
1168a5993
124062166
132668a19
1418635dc
1510d6d70
hexb8345e

12072030 has 32 divisors (see below), whose sum is σ = 30499200. Its totient is φ = 3049632.

The previous prime is 12072019. The next prime is 12072031. The reversal of 12072030 is 3027021.

12072030 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12072031) 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, 10020 + ... + 11159.

It is an arithmetic number, because the mean of its divisors is an integer number (953100).

Almost surely, 212072030 is an apocalyptic number.

12072030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12072030 is an abundant number, since it is smaller than the sum of its proper divisors (18427170).

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

12072030 is a wasteful number, since it uses less digits than its factorization.

12072030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21208.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 12072030 is about 3474.4826953088. The cubic root of 12072030 is about 229.4000115029.

Adding to 12072030 its reverse (3027021), we get a palindrome (15099051).

It can be divided in two parts, 120 and 72030, that multiplied together give a square (8643600 = 29402).

The spelling of 12072030 in words is "twelve million, seventy-two thousand, thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 21179 42358 63537 105895 127074 211790 317685 402401 635370 804802 1207203 2012005 2414406 4024010 6036015 12072030