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872629145188 = 221627313406089
BaseRepresentation
bin11001011001011001100…
…00000000111001100100
310002102102000200121000221
430230230300000321210
5103244121030121223
61504514051014124
7120021364231003
oct14545460007144
93072360617027
10872629145188
11307097448529
1212115589a344
1364399cccb28
1430342208c3a
1517a7463db5d
hexcb2cc00e64

872629145188 has 12 divisors (see below), whose sum is σ = 1527194960620. Its totient is φ = 436287727872.

The previous prime is 872629145159. The next prime is 872629145189. The reversal of 872629145188 is 881541926278.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 559441169764 + 313187975424 = 747958^2 + 559632^2 .

It is a super-2 number, since 2×8726291451882 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (872629145189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6637953 + ... + 6768136.

Almost surely, 2872629145188 is an apocalyptic number.

It is an amenable number.

872629145188 is a deficient number, since it is larger than the sum of its proper divisors (654565815432).

872629145188 is a wasteful number, since it uses less digits than its factorization.

872629145188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13422366 (or 13422364 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 61.

The spelling of 872629145188 in words is "eight hundred seventy-two billion, six hundred twenty-nine million, one hundred forty-five thousand, one hundred eighty-eight".

Divisors: 1 2 4 16273 32546 65092 13406089 26812178 53624356 218157286297 436314572594 872629145188