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79053040 = 2451189833
BaseRepresentation
bin1001011011001…
…00000011110000
312111202022101101
410231210003300
5130214144130
611502214144
71646640223
oct455440360
9174668341
1079053040
11406947a0
1222584354
13134bb361
14a6db5ba
156e181ca
hex4b640f0

79053040 has 40 divisors (see below), whose sum is σ = 200509488. Its totient is φ = 28746240.

The previous prime is 79053031. The next prime is 79053041. The reversal of 79053040 is 4035097.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79053041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44037 + ... + 45796.

Almost surely, 279053040 is an apocalyptic number.

It is an amenable number.

79053040 is an abundant number, since it is smaller than the sum of its proper divisors (121456448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79053040 is a wasteful number, since it uses less digits than its factorization.

79053040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89857 (or 89851 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 79053040 is about 8891.1776497830. The cubic root of 79053040 is about 429.1800491423.

The spelling of 79053040 in words is "seventy-nine million, fifty-three thousand, forty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 440 880 89833 179666 359332 449165 718664 898330 988163 1437328 1796660 1976326 3593320 3952652 4940815 7186640 7905304 9881630 15810608 19763260 39526520 79053040