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79419145 = 51319107601
BaseRepresentation
bin1001011101111…
…01011100001001
312112102220120211
410232331130021
5130312403040
611514121121
71653023461
oct456753411
9175386524
1079419145
1140914863
12227201a1
13135b8ba0
14a794ba1
156e8b8ea
hex4bbd709

79419145 has 32 divisors (see below), whose sum is σ = 109226880. Its totient is φ = 54950400.

The previous prime is 79419127. The next prime is 79419149. The reversal of 79419145 is 54191497.

It is not a de Polignac number, because 79419145 - 27 = 79419017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79419098 and 79419107.

It is not an unprimeable number, because it can be changed into a prime (79419149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131845 + ... + 132445.

It is an arithmetic number, because the mean of its divisors is an integer number (3413340).

Almost surely, 279419145 is an apocalyptic number.

It is an amenable number.

79419145 is a deficient number, since it is larger than the sum of its proper divisors (29807735).

79419145 is a wasteful number, since it uses less digits than its factorization.

79419145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its digits is 45360, while the sum is 40.

The square root of 79419145 is about 8911.7419733742. The cubic root of 79419145 is about 429.8415587169.

The spelling of 79419145 in words is "seventy-nine million, four hundred nineteen thousand, one hundred forty-five".

Divisors: 1 5 13 19 65 95 107 247 535 601 1235 1391 2033 3005 6955 7813 10165 11419 26429 39065 57095 64307 132145 148447 321535 742235 835991 1221833 4179955 6109165 15883829 79419145