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71284160188 = 22371134262387
BaseRepresentation
bin100001001100011011…
…1011111011010111100
320210222220201112111001
41002120313133122330
52131442221111223
652425242540044
75102326235623
oct1023067373274
9223886645431
1071284160188
112826006068a
1211994b07624
1369504c7957
1436433b26ba
151cc32229ad
hex1098ddf6bc

71284160188 has 24 divisors (see below), whose sum is σ = 129252653712. Its totient is φ = 34371880704.

The previous prime is 71284160137. The next prime is 71284160191. The reversal of 71284160188 is 88106148217.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2114470 + ... + 2147917.

It is an arithmetic number, because the mean of its divisors is an integer number (5385527238).

Almost surely, 271284160188 is an apocalyptic number.

It is an amenable number.

71284160188 is a deficient number, since it is larger than the sum of its proper divisors (57968493524).

71284160188 is a wasteful number, since it uses less digits than its factorization.

71284160188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262541 (or 4262539 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 46.

The spelling of 71284160188 in words is "seventy-one billion, two hundred eighty-four million, one hundred sixty thousand, one hundred eighty-eight".

Divisors: 1 2 4 37 74 113 148 226 452 4181 8362 16724 4262387 8524774 17049548 157708319 315416638 481649731 630833276 963299462 1926598924 17821040047 35642080094 71284160188