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147283280 = 2456130181
BaseRepresentation
bin10001100011101…
…01110101010000
3101021010202200022
420301311311100
5300201031110
622340443012
73435613214
oct1061656520
9337122608
10147283280
1176157121
12413a9468
132468a491
14157bc944
15cde4755
hex8c75d50

147283280 has 40 divisors (see below), whose sum is σ = 348058824. Its totient is φ = 57945600.

The previous prime is 147283247. The next prime is 147283303. The reversal of 147283280 is 82382741.

It can be written as a sum of positive squares in 4 ways, for example, as 784 + 147282496 = 28^2 + 12136^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 147283280.

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, 10211 + ... + 19970.

Almost surely, 2147283280 is an apocalyptic number.

147283280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147283280 is an abundant number, since it is smaller than the sum of its proper divisors (200775544).

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

147283280 is a wasteful number, since it uses less digits than its factorization.

147283280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30255 (or 30249 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 147283280 is about 12136.0323005503. The cubic root of 147283280 is about 528.1020043207.

The spelling of 147283280 in words is "one hundred forty-seven million, two hundred eighty-three thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 61 80 122 244 305 488 610 976 1220 2440 4880 30181 60362 120724 150905 241448 301810 482896 603620 1207240 1841041 2414480 3682082 7364164 9205205 14728328 18410410 29456656 36820820 73641640 147283280