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147723093 = 3272334973
BaseRepresentation
bin10001100111000…
…01001101010101
3101021222002222200
420303201031111
5300304114333
622354115113
73442424400
oct1063411525
9337862880
10147723093
1176427601
124157ba99
13247b271b
1415894d37
15ce7ec13
hex8ce1355

147723093 has 18 divisors (see below), whose sum is σ = 248215734. Its totient is φ = 84412944.

The previous prime is 147723083. The next prime is 147723101. The reversal of 147723093 is 390327741.

It can be written as a sum of positive squares in only one way, i.e., 129549924 + 18173169 = 11382^2 + 4263^2 .

It is not a de Polignac number, because 147723093 - 28 = 147722837 is a prime.

It is a super-2 number, since 2×1477230932 = 43644224410973298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147723083) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 167046 + ... + 167927.

It is an arithmetic number, because the mean of its divisors is an integer number (13789763).

Almost surely, 2147723093 is an apocalyptic number.

It is an amenable number.

147723093 is a deficient number, since it is larger than the sum of its proper divisors (100492641).

147723093 is a wasteful number, since it uses less digits than its factorization.

147723093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334993 (or 334983 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 147723093 is about 12154.1389246627. The cubic root of 147723093 is about 528.6271495016.

The spelling of 147723093 in words is "one hundred forty-seven million, seven hundred twenty-three thousand, ninety-three".

Divisors: 1 3 7 9 21 49 63 147 441 334973 1004919 2344811 3014757 7034433 16413677 21103299 49241031 147723093