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80713500 = 2235377687
BaseRepresentation
bin1001100111110…
…01011100011100
312121212200002220
410303321130130
5131130313000
612001545340
72000024220
oct463713434
9177780086
1080713500
114161927a
1223045250
131395008a
14aa10780
1571451a0
hex4cf971c

80713500 has 96 divisors (see below), whose sum is σ = 268649472. Its totient is φ = 18446400.

The previous prime is 80713489. The next prime is 80713513. The reversal of 80713500 is 531708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6657 + ... + 14343.

It is an arithmetic number, because the mean of its divisors is an integer number (2798432).

Almost surely, 280713500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80713500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134324736).

80713500 is an abundant number, since it is smaller than the sum of its proper divisors (187935972).

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

80713500 is a wasteful number, since it uses less digits than its factorization.

80713500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7716 (or 7704 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 80713500 is about 8984.0692339274. The cubic root of 80713500 is about 432.1641394445.

The spelling of 80713500 in words is "eighty million, seven hundred thirteen thousand, five hundred".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 84 100 105 125 140 150 175 210 250 300 350 375 420 500 525 700 750 875 1050 1500 1750 2100 2625 3500 5250 7687 10500 15374 23061 30748 38435 46122 53809 76870 92244 107618 115305 153740 161427 192175 215236 230610 269045 322854 384350 461220 538090 576525 645708 768700 807135 960875 1076180 1153050 1345225 1614270 1921750 2306100 2690450 2882625 3228540 3843500 4035675 5380900 5765250 6726125 8071350 11530500 13452250 16142700 20178375 26904500 40356750 80713500