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80142932 = 2223778429
BaseRepresentation
bin1001100011011…
…10001001010100
312120210200102202
410301232021110
5131004033212
611541424032
71662126602
oct461561124
9176720382
1080142932
1141269631
1222a0b018
13137b046c
14a902872
1570810c2
hex4c6e254

80142932 has 12 divisors (see below), whose sum is σ = 140325780. Its totient is φ = 40049856.

The previous prime is 80142929. The next prime is 80142941. The reversal of 80142932 is 23924108.

It can be written as a sum of positive squares in 2 ways, for example, as 21864976 + 58277956 = 4676^2 + 7634^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80142895 and 80142904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5294 + ... + 13722.

It is an arithmetic number, because the mean of its divisors is an integer number (11693815).

Almost surely, 280142932 is an apocalyptic number.

It is an amenable number.

80142932 is a deficient number, since it is larger than the sum of its proper divisors (60182848).

80142932 is a wasteful number, since it uses less digits than its factorization.

80142932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10810 (or 10808 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 80142932 is about 8952.2584859911. The cubic root of 80142932 is about 431.1434000469.

The spelling of 80142932 in words is "eighty million, one hundred forty-two thousand, nine hundred thirty-two".

Divisors: 1 2 4 2377 4754 8429 9508 16858 33716 20035733 40071466 80142932