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180879342 = 2374306651
BaseRepresentation
bin10101100011111…
…11111111101110
3110121100121210220
422301333333232
5332301114332
625540512210
74324310010
oct1261777756
9417317726
10180879342
1193113366
12506ab666
132b6211c7
141a0461b0
1510d2dd2c
hexac7ffee

180879342 has 16 divisors (see below), whose sum is σ = 413438592. Its totient is φ = 51679800.

The previous prime is 180879329. The next prime is 180879353. The reversal of 180879342 is 243978081.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 4306651 = 180879342 / (1 + 8 + 0 + 8 + 7 + 9 + 3 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 180879294 and 180879303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153284 + ... + 2153367.

It is an arithmetic number, because the mean of its divisors is an integer number (25839912).

Almost surely, 2180879342 is an apocalyptic number.

180879342 is an abundant number, since it is smaller than the sum of its proper divisors (232559250).

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

180879342 is a wasteful number, since it uses less digits than its factorization.

180879342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306663.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 180879342 is about 13449.1390802534. The cubic root of 180879342 is about 565.5395602742.

The spelling of 180879342 in words is "one hundred eighty million, eight hundred seventy-nine thousand, three hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 4306651 8613302 12919953 25839906 30146557 60293114 90439671 180879342