Search a number
-
+
78200506216 = 2372398158231
BaseRepresentation
bin100100011010100011…
…1010000011101101000
321110211221001022121001
41020311013100131220
52240123312144331
655531432124344
75435611223020
oct1106507203550
9243757038531
1078200506216
113018a168838
12131a52366b4
1374b33912b1
143adbb94a80
15207a515561
hex12351d0768

78200506216 has 32 divisors (see below), whose sum is σ = 167582378880. Its totient is φ = 33512529600.

The previous prime is 78200506213. The next prime is 78200506259. The reversal of 78200506216 is 61260500287.

It is a happy number.

It is a super-2 number, since 2×782005062162 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78200506213) 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, 1313821 + ... + 1372051.

It is an arithmetic number, because the mean of its divisors is an integer number (5236949340).

Almost surely, 278200506216 is an apocalyptic number.

It is an amenable number.

78200506216 is an abundant number, since it is smaller than the sum of its proper divisors (89381872664).

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

78200506216 is a wasteful number, since it uses less digits than its factorization.

78200506216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82225 (or 82221 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 78200506216 in words is "seventy-eight billion, two hundred million, five hundred six thousand, two hundred sixteen".

Divisors: 1 2 4 7 8 14 28 56 23981 47962 58231 95924 116462 167867 191848 232924 335734 407617 465848 671468 815234 1342936 1630468 3260936 1396437611 2792875222 5585750444 9775063277 11171500888 19550126554 39100253108 78200506216