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83195945 = 5723103349
BaseRepresentation
bin1001111010101…
…11100000101001
312210112210101022
410331113200221
5132244232240
612131102225
72030103530
oct475274051
9183483338
1083195945
1142a64388
1223a41975
131430bc91
14b099317
1574859b5
hex4f57829

83195945 has 16 divisors (see below), whose sum is σ = 119059200. Its totient is φ = 54567744.

The previous prime is 83195941. The next prime is 83195989. The reversal of 83195945 is 54959138.

It is a happy number.

It is not a de Polignac number, because 83195945 - 22 = 83195941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83195896 and 83195905.

It is not an unprimeable number, because it can be changed into a prime (83195941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50870 + ... + 52479.

It is an arithmetic number, because the mean of its divisors is an integer number (7441200).

Almost surely, 283195945 is an apocalyptic number.

It is an amenable number.

83195945 is a deficient number, since it is larger than the sum of its proper divisors (35863255).

83195945 is a wasteful number, since it uses less digits than its factorization.

83195945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103384.

The product of its digits is 194400, while the sum is 44.

The square root of 83195945 is about 9121.1811186929. The cubic root of 83195945 is about 436.5500608045.

The spelling of 83195945 in words is "eighty-three million, one hundred ninety-five thousand, nine hundred forty-five".

Divisors: 1 5 7 23 35 115 161 805 103349 516745 723443 2377027 3617215 11885135 16639189 83195945