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80724442330 = 25710453110323
BaseRepresentation
bin100101100101110001…
…1010011110011011010
321201100211021120001101
41023023203103303122
52310310424123310
6101030112542014
75555266303240
oct1131343236332
9251324246041
1080724442330
1131264930354
121378a55190a
1377c625160c
143c9b076790
152176dbd43a
hex12cb8d3cda

80724442330 has 32 divisors (see below), whose sum is σ = 166079101824. Its totient is φ = 27674053056.

The previous prime is 80724442313. The next prime is 80724442343. The reversal of 80724442330 is 3324442708.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 80724442330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676549 + ... + 786871.

It is an arithmetic number, because the mean of its divisors is an integer number (5189971932).

Almost surely, 280724442330 is an apocalyptic number.

80724442330 is an abundant number, since it is smaller than the sum of its proper divisors (85354659494).

80724442330 is a wasteful number, since it uses less digits than its factorization.

80724442330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120790.

The product of its (nonzero) digits is 129024, while the sum is 37.

The spelling of 80724442330 in words is "eighty billion, seven hundred twenty-four million, four hundred forty-two thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 10453 20906 52265 73171 104530 110323 146342 220646 365855 551615 731710 772261 1103230 1544522 3861305 7722610 1153206319 2306412638 5766031595 8072444233 11532063190 16144888466 40362221165 80724442330