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80354043 = 32711283127
BaseRepresentation
bin1001100101000…
…01101011111011
312121012102000200
410302201223323
5131032312133
611550133243
71663666230
oct462415373
9177172020
1080354043
11413a3200
1222ab1223
1313855593
14a959787
1570c3913
hex4ca1afb

80354043 has 72 divisors (see below), whose sum is σ = 148721664. Its totient is φ = 40914720.

The previous prime is 80354033. The next prime is 80354051. The reversal of 80354043 is 34045308.

It is a happy number.

80354043 is a `hidden beast` number, since 80 + 3 + 540 + 43 = 666.

It is not a de Polignac number, because 80354043 - 28 = 80353787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80353998 and 80354016.

It is not an unprimeable number, because it can be changed into a prime (80354033) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 632646 + ... + 632772.

Almost surely, 280354043 is an apocalyptic number.

80354043 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

80354043 is a deficient number, since it is larger than the sum of its proper divisors (68367621).

80354043 is a wasteful number, since it uses less digits than its factorization.

80354043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 80354043 is about 8964.0416665698. The cubic root of 80354043 is about 431.5216380630.

The spelling of 80354043 in words is "eighty million, three hundred fifty-four thousand, forty-three".

Divisors: 1 3 7 9 11 21 33 63 77 83 99 121 127 231 249 363 381 581 693 747 847 889 913 1089 1143 1397 1743 2541 2667 2739 4191 5229 6391 7623 8001 8217 9779 10043 10541 12573 15367 19173 29337 30129 31623 46101 57519 70301 73787 88011 90387 94869 107569 115951 138303 210903 221361 322707 347853 632709 664083 811657 968121 1043559 1275461 2434971 3826383 7304913 8928227 11479149 26784681 80354043