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80994670 = 2571114077
BaseRepresentation
bin1001101001111…
…10000101101110
312122101221210121
410310332011232
5131213312140
612011555154
72002305031
oct464760556
9178357717
1080994670
11417a0549
122315baba
1313a1b053
14aa85018
15719d64a
hex4d3e16e

80994670 has 16 divisors (see below), whose sum is σ = 147845088. Its totient is φ = 31941280.

The previous prime is 80994659. The next prime is 80994673. The reversal of 80994670 is 7649908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80994673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56329 + ... + 57748.

It is an arithmetic number, because the mean of its divisors is an integer number (9240318).

Almost surely, 280994670 is an apocalyptic number.

80994670 is a deficient number, since it is larger than the sum of its proper divisors (66850418).

80994670 is a wasteful number, since it uses less digits than its factorization.

80994670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114155.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 80994670 is about 8999.7038840175. The cubic root of 80994670 is about 432.6653805258.

It can be divided in two parts, 8099 and 4670, that added together give a square (12769 = 1132).

The spelling of 80994670 in words is "eighty million, nine hundred ninety-four thousand, six hundred seventy".

Divisors: 1 2 5 10 71 142 355 710 114077 228154 570385 1140770 8099467 16198934 40497335 80994670