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80047989142 = 21123374275611
BaseRepresentation
bin100101010001100111…
…0110110000110010110
321122121200102011201121
41022203032312012112
52302414241123032
6100435030114154
75532443452432
oct1124316660626
9248550364647
1080047989142
1130a48004030
121361baab95a
137719067b64
143c352ab9c2
1521377eca97
hex12a33b6196

80047989142 has 32 divisors (see below), whose sum is σ = 140376893184. Its totient is φ = 33862831200.

The previous prime is 80047989079. The next prime is 80047989163. The reversal of 80047989142 is 24198974008.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80047989142.

It is a congruent number.

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, 2119084 + ... + 2156527.

It is an arithmetic number, because the mean of its divisors is an integer number (4386777912).

Almost surely, 280047989142 is an apocalyptic number.

80047989142 is a deficient number, since it is larger than the sum of its proper divisors (60328904042).

80047989142 is a wasteful number, since it uses less digits than its factorization.

80047989142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275684.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 80047989142 in words is "eighty billion, forty-seven million, nine hundred eighty-nine thousand, one hundred forty-two".

Divisors: 1 2 11 22 23 37 46 74 253 407 506 814 851 1702 9361 18722 4275611 8551222 47031721 94063442 98339053 158197607 196678106 316395214 1081729583 1740173677 2163459166 3480347354 3638544961 7277089922 40023994571 80047989142