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147780148 = 22281131477
BaseRepresentation
bin10001100111011…
…11001000110100
3101022002000020211
420303233020310
5300312431043
622355235204
73443052625
oct1063571064
9338060224
10147780148
117646645a
12415a8b04
1324802699
14158aba4c
15ce91a9d
hex8cef234

147780148 has 12 divisors (see below), whose sum is σ = 259537572. Its totient is φ = 73626560.

The previous prime is 147780107. The next prime is 147780151. The reversal of 147780148 is 841087741.

147780148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 125708944 + 22071204 = 11212^2 + 4698^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 147780148.

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, 64615 + ... + 66862.

It is an arithmetic number, because the mean of its divisors is an integer number (21628131).

Almost surely, 2147780148 is an apocalyptic number.

It is an amenable number.

147780148 is a deficient number, since it is larger than the sum of its proper divisors (111757424).

147780148 is a wasteful number, since it uses less digits than its factorization.

147780148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131762 (or 131760 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 147780148 is about 12156.4858408999. The cubic root of 147780148 is about 528.6951978554.

The spelling of 147780148 in words is "one hundred forty-seven million, seven hundred eighty thousand, one hundred forty-eight".

Divisors: 1 2 4 281 562 1124 131477 262954 525908 36945037 73890074 147780148