Search a number
-
+
12468420072 = 2334127151507
BaseRepresentation
bin10111001110010110…
…01111110111101000
31012011221112100220000
423213023033313220
5201013403420242
65421121303000
7620656551633
oct134713176750
935157470800
1012468420072
1153191095a9
1224bb794a60
131239210774
14863d12c1a
154ce94ba4c
hex2e72cfde8

12468420072 has 80 divisors (see below), whose sum is σ = 35198338560. Its totient is φ = 4123387296.

The previous prime is 12468420067. The next prime is 12468420089. The reversal of 12468420072 is 27002486421.

It is a super-2 number, since 2×124684200722 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6543 + ... + 158049.

It is an arithmetic number, because the mean of its divisors is an integer number (439979232).

Almost surely, 212468420072 is an apocalyptic number.

12468420072 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 12468420072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17599169280).

12468420072 is an abundant number, since it is smaller than the sum of its proper divisors (22729918488).

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

12468420072 is a wasteful number, since it uses less digits than its factorization.

12468420072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151652 (or 151639 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The spelling of 12468420072 in words is "twelve billion, four hundred sixty-eight million, four hundred twenty thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 127 162 216 254 324 381 508 648 762 1016 1143 1524 2286 3048 3429 4572 6858 9144 10287 13716 20574 27432 41148 82296 151507 303014 454521 606028 909042 1212056 1363563 1818084 2727126 3636168 4090689 5454252 8181378 10908504 12272067 16362756 19241389 24544134 32725512 38482778 49088268 57724167 76965556 98176536 115448334 153931112 173172501 230896668 346345002 461793336 519517503 692690004 1039035006 1385380008 1558552509 2078070012 3117105018 4156140024 6234210036 12468420072