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72068872419 = 3321611235177
BaseRepresentation
bin100001100011110100…
…0111011100011100011
320220000121022001022000
41003013220323203203
52140044112404134
653035154015043
75130635210445
oct1030750734343
9226017261260
1072068872419
1128622aaa595
1211b73877483
136a46c5720b
1436b96bc495
151d1c079e99
hex10c7a3b8e3

72068872419 has 16 divisors (see below), whose sum is σ = 106818193440. Its totient is φ = 48023642880.

The previous prime is 72068872409. The next prime is 72068872423. The reversal of 72068872419 is 91427886027.

It is a happy number.

It is not a de Polignac number, because 72068872419 - 28 = 72068872163 is a prime.

It is a super-2 number, since 2×720688724192 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72068872409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559242 + ... + 675935.

It is an arithmetic number, because the mean of its divisors is an integer number (6676137090).

Almost surely, 272068872419 is an apocalyptic number.

72068872419 is a deficient number, since it is larger than the sum of its proper divisors (34749321021).

72068872419 is a wasteful number, since it uses less digits than its factorization.

72068872419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237347 (or 1237341 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 72068872419 in words is "seventy-two billion, sixty-eight million, eight hundred seventy-two thousand, four hundred nineteen".

Divisors: 1 3 9 27 2161 6483 19449 58347 1235177 3705531 11116593 33349779 2669217497 8007652491 24022957473 72068872419