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72920332216246 = 2179281231086699
BaseRepresentation
bin10000100101001000010110…
…011111111010011110110110
3100120012010010022220022021011
4100211020112133322132312
534024211320021404441
6415031045501542434
721234214544634034
oct2045102637723666
9316163108808234
1072920332216246
11212643805637a9
128218547874a1a
13318c48619c558
141401511b81554
15866c59ee0581
hex4252167fa7b6

72920332216246 has 16 divisors (see below), whose sum is σ = 115827124467600. Its totient is φ = 34311752919040.

The previous prime is 72920332216243. The next prime is 72920332216289. The reversal of 72920332216246 is 64261223302927.

It is a self number, because there is not a number n which added to its sum of digits gives 72920332216246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72920332216243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115227796 + ... + 115858903.

It is an arithmetic number, because the mean of its divisors is an integer number (7239195279225).

Almost surely, 272920332216246 is an apocalyptic number.

72920332216246 is a deficient number, since it is larger than the sum of its proper divisors (42906792251354).

72920332216246 is a wasteful number, since it uses less digits than its factorization.

72920332216246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231095999.

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 72920332216246 in words is "seventy-two trillion, nine hundred twenty billion, three hundred thirty-two million, two hundred sixteen thousand, two hundred forty-six".

Divisors: 1 2 17 34 9281 18562 157777 315554 231086699 462173398 3928473883 7856947766 2144715653419 4289431306838 36460166108123 72920332216246