Search a number
-
+
80197029 = 3211810071
BaseRepresentation
bin1001100011110…
…11010110100101
312120220102122100
410301323112211
5131012301104
611542522313
71662443403
oct461732645
9176812570
1080197029
11412a6240
1222a36399
13137cbc83
14a918473
157092139
hex4c7b5a5

80197029 has 12 divisors (see below), whose sum is σ = 126371232. Its totient is φ = 48604200.

The previous prime is 80197027. The next prime is 80197049. The reversal of 80197029 is 92079108.

It is a happy number.

It is not a de Polignac number, because 80197029 - 21 = 80197027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80196984 and 80197002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80197027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404937 + ... + 405134.

It is an arithmetic number, because the mean of its divisors is an integer number (10530936).

Almost surely, 280197029 is an apocalyptic number.

It is an amenable number.

80197029 is a deficient number, since it is larger than the sum of its proper divisors (46174203).

80197029 is a wasteful number, since it uses less digits than its factorization.

80197029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810088 (or 810085 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 80197029 is about 8955.2793926265. The cubic root of 80197029 is about 431.2403864272.

The spelling of 80197029 in words is "eighty million, one hundred ninety-seven thousand, twenty-nine".

Divisors: 1 3 9 11 33 99 810071 2430213 7290639 8910781 26732343 80197029