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12162242620 = 22511371494133
BaseRepresentation
bin10110101001110110…
…10001100000111100
31011101121101221101101
423110323101200330
5144402013230440
65330503022444
7610251233203
oct132473214074
934347357341
1012162242620
1151812a5990
12243513aa24
1311ba95bc88
148353b223a
154b2b1c69a
hex2d4ed183c

12162242620 has 48 divisors (see below), whose sum is σ = 28615654368. Its totient is φ = 4303100160.

The previous prime is 12162242467. The next prime is 12162242621. The reversal of 12162242620 is 2624226121.

12162242620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12162242621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 738927 + ... + 755206.

It is an arithmetic number, because the mean of its divisors is an integer number (596159466).

Almost surely, 212162242620 is an apocalyptic number.

12162242620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12162242620 is an abundant number, since it is smaller than the sum of its proper divisors (16453411748).

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

12162242620 is a wasteful number, since it uses less digits than its factorization.

12162242620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494190 (or 1494188 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 12162242620 its reverse (2624226121), we get a palindrome (14786468741).

The spelling of 12162242620 in words is "twelve billion, one hundred sixty-two million, two hundred forty-two thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 37 44 55 74 110 148 185 220 370 407 740 814 1628 2035 4070 8140 1494133 2988266 5976532 7470665 14941330 16435463 29882660 32870926 55282921 65741852 82177315 110565842 164354630 221131684 276414605 328709260 552829210 608112131 1105658420 1216224262 2432448524 3040560655 6081121310 12162242620