Search a number
-
+
80047705790 = 2513615751583
BaseRepresentation
bin100101010001100110…
…1110000111010111110
321122121122212210001002
41022203031300322332
52302414203041130
6100435020050302
75532441162353
oct1124315607276
9248548783032
1080047705790
1130a47930158
121361b993992
137718c98bb0
143c3523662a
152137793b45
hex12a3370ebe

80047705790 has 16 divisors (see below), whose sum is σ = 155169399168. Its totient is φ = 29556075936.

The previous prime is 80047705781. The next prime is 80047705799. The reversal of 80047705790 is 9750774008.

It is an interprime number because it is at equal distance from previous prime (80047705781) and next prime (80047705799).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80047705799) 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, 307875662 + ... + 307875921.

It is an arithmetic number, because the mean of its divisors is an integer number (9698087448).

Almost surely, 280047705790 is an apocalyptic number.

80047705790 is a deficient number, since it is larger than the sum of its proper divisors (75121693378).

80047705790 is a wasteful number, since it uses less digits than its factorization.

80047705790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615751603.

The product of its (nonzero) digits is 493920, while the sum is 47.

The spelling of 80047705790 in words is "eighty billion, forty-seven million, seven hundred five thousand, seven hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 615751583 1231503166 3078757915 6157515830 8004770579 16009541158 40023852895 80047705790