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147809954 = 2618913613
BaseRepresentation
bin10001100111101…
…10011010100010
3101022010112010202
420303312122202
5300314404304
622400025202
73443235545
oct1063663242
9338115122
10147809954
1176486896
1241602202
1324813116
14158b885c
15ce9a81e
hex8cf66a2

147809954 has 16 divisors (see below), whose sum is σ = 227898360. Its totient is φ = 71871360.

The previous prime is 147809947. The next prime is 147809957. The reversal of 147809954 is 459908741.

147809954 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 4 ways, for example, as 14938225 + 132871729 = 3865^2 + 11527^2 .

It is a junction number, because it is equal to n+sod(n) for n = 147809899 and 147809908.

It is not an unprimeable number, because it can be changed into a prime (147809957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4052 + ... + 17664.

Almost surely, 2147809954 is an apocalyptic number.

147809954 is a deficient number, since it is larger than the sum of its proper divisors (80088406).

147809954 is a wasteful number, since it uses less digits than its factorization.

147809954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13765.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 147809954 is about 12157.7117090347. The cubic root of 147809954 is about 528.7307399088.

The spelling of 147809954 in words is "one hundred forty-seven million, eight hundred nine thousand, nine hundred fifty-four".

Divisors: 1 2 61 89 122 178 5429 10858 13613 27226 830393 1211557 1660786 2423114 73904977 147809954