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80872744880943 = 32197157672892973
BaseRepresentation
bin10010011000110110100111…
…001110110000101100101111
3101121100100200122022121021100
4102120312213032300230233
541100004340142142233
6444000232012134143
723014602003162351
oct2230664716605457
9347310618277240
1080872744880943
112384aa36156654
1290a181a767353
133618361b25032
1415d83942c90d1
15953a442d9813
hex498da73b0b2f

80872744880943 has 24 divisors (see below), whose sum is σ = 117416649718368. Its totient is φ = 53638061545152.

The previous prime is 80872744880869. The next prime is 80872744880953. The reversal of 80872744880943 is 34908844727808.

It is a happy number.

80872744880943 is a `hidden beast` number, since 8 + 0 + 8 + 72 + 74 + 488 + 0 + 9 + 4 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2k-80872744880943 is a prime.

It is a super-2 number, since 2×808727448809432 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80872744880953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26508405 + ... + 29401377.

It is an arithmetic number, because the mean of its divisors is an integer number (4892360404932).

Almost surely, 280872744880943 is an apocalyptic number.

80872744880943 is a deficient number, since it is larger than the sum of its proper divisors (36543904837425).

80872744880943 is a wasteful number, since it uses less digits than its factorization.

80872744880943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908943 (or 2908940 counting only the distinct ones).

The product of its (nonzero) digits is 693633024, while the sum is 72.

The spelling of 80872744880943 in words is "eighty trillion, eight hundred seventy-two billion, seven hundred forty-four million, eight hundred eighty thousand, nine hundred forty-three".

Divisors: 1 3 9 197 591 1773 15767 47301 141903 2892973 3106099 8678919 9318297 26036757 27954891 569915681 1709747043 5129241129 45613505291 136840515873 410521547619 8985860542327 26957581626981 80872744880943