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147505980 = 22352458433
BaseRepresentation
bin10001100101011…
…00001100111100
3101021120002011110
420302230030330
5300230142410
622345322020
73440531406
oct1062541474
9337502143
10147505980
1176299476
1241496310
132473795b
1415839b76
15ce3a720
hex8cac33c

147505980 has 24 divisors (see below), whose sum is σ = 413016912. Its totient is φ = 39334912.

The previous prime is 147505973. The next prime is 147505993. The reversal of 147505980 is 89505741.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229157 + ... + 1229276.

It is an arithmetic number, because the mean of its divisors is an integer number (17209038).

Almost surely, 2147505980 is an apocalyptic number.

147505980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147505980 is an abundant number, since it is smaller than the sum of its proper divisors (265510932).

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

147505980 is a wasteful number, since it uses less digits than its factorization.

147505980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458445 (or 2458443 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 147505980 is about 12145.2039916998. The cubic root of 147505980 is about 528.3680428678.

The spelling of 147505980 in words is "one hundred forty-seven million, five hundred five thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2458433 4916866 7375299 9833732 12292165 14750598 24584330 29501196 36876495 49168660 73752990 147505980