Search a number
-
+
80028356831 = 376073563309
BaseRepresentation
bin100101010001000001…
…1111101000011011111
321122120022110202020222
41022202003331003133
52302344224404311
6100433045231555
75532114544403
oct1124203750337
9248508422228
1080028356831
1130a37a14a85
12136154025bb
137714c82bc7
143c3283b103
152135c20adb
hex12a20fd0df

80028356831 has 8 divisors (see below), whose sum is σ = 82326714240. Its totient is φ = 77737127328.

The previous prime is 80028356813. The next prime is 80028356843. The reversal of 80028356831 is 13865382008.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80028356831 - 218 = 80028094687 is a prime.

It is a super-2 number, since 2×800283568312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80028356131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1759196 + ... + 1804113.

It is an arithmetic number, because the mean of its divisors is an integer number (10290839280).

Almost surely, 280028356831 is an apocalyptic number.

80028356831 is a deficient number, since it is larger than the sum of its proper divisors (2298357409).

80028356831 is a wasteful number, since it uses less digits than its factorization.

80028356831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563953.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 80028356831 in words is "eighty billion, twenty-eight million, three hundred fifty-six thousand, eight hundred thirty-one".

Divisors: 1 37 607 22459 3563309 131842433 2162928563 80028356831