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BaseRepresentation
bin100100001000001100
321111222202
4210020030
514213410
63101032
71154300
oct441014
9244882
10147980
11a11a8
1271778
1352481
143bd00
152dca5
hex2420c

147980 has 36 divisors (see below), whose sum is σ = 363888. Its totient is φ = 50400.

The previous prime is 147977. The next prime is 147997. The reversal of 147980 is 89741.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147980.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 905 + ... + 1055.

It is an arithmetic number, because the mean of its divisors is an integer number (10108).

2147980 is an apocalyptic number.

147980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181944).

147980 is an abundant number, since it is smaller than the sum of its proper divisors (215908).

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

147980 is a wasteful number, since it uses less digits than its factorization.

147980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 147980 is about 384.6816865930. The cubic root of 147980 is about 52.8933419293.

The spelling of 147980 in words is "one hundred forty-seven thousand, nine hundred eighty".