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146980079 = 178645887
BaseRepresentation
bin10001100001010…
…11110011101111
3101020120100202122
420300223303233
5300111330304
622330143155
73433211231
oct1060536357
9336510678
10146980079
1175a6a344
1241281abb
13245b247c
1415740251
15cd849be
hex8c2bcef

146980079 has 4 divisors (see below), whose sum is σ = 155625984. Its totient is φ = 138334176.

The previous prime is 146980061. The next prime is 146980081. The reversal of 146980079 is 970089641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970089641 = 8311687827.

It is a cyclic number.

It is not a de Polignac number, because 146980079 - 28 = 146979823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146980019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4322927 + ... + 4322960.

It is an arithmetic number, because the mean of its divisors is an integer number (38906496).

Almost surely, 2146980079 is an apocalyptic number.

146980079 is a deficient number, since it is larger than the sum of its proper divisors (8645905).

146980079 is an equidigital number, since it uses as much as digits as its factorization.

146980079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645904.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 146980079 is about 12123.5340969537. The cubic root of 146980079 is about 527.7393674166.

The spelling of 146980079 in words is "one hundred forty-six million, nine hundred eighty thousand, seventy-nine".

Divisors: 1 17 8645887 146980079