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147740538 = 23119372389
BaseRepresentation
bin10001100111001…
…01011101111010
3101021222222220210
420303211131322
5300310144123
622354331550
73442526301
oct1063453572
9337888823
10147740538
1176439720
1241589bb6
13247ba64a
141589b438
15ce84e93
hex8ce577a

147740538 has 32 divisors (see below), whose sum is σ = 322822080. Its totient is φ = 44703360.

The previous prime is 147740533. The next prime is 147740609. The reversal of 147740538 is 835047741.

It is a junction number, because it is equal to n+sod(n) for n = 147740496 and 147740505.

It is not an unprimeable number, because it can be changed into a prime (147740531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60648 + ... + 63036.

It is an arithmetic number, because the mean of its divisors is an integer number (10088190).

Almost surely, 2147740538 is an apocalyptic number.

147740538 is an abundant number, since it is smaller than the sum of its proper divisors (175081542).

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

147740538 is a wasteful number, since it uses less digits than its factorization.

147740538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 147740538 is about 12154.8565602396. The cubic root of 147740538 is about 528.6479576625.

The spelling of 147740538 in words is "one hundred forty-seven million, seven hundred forty thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 66 937 1874 2389 2811 4778 5622 7167 10307 14334 20614 26279 30921 52558 61842 78837 157674 2238493 4476986 6715479 13430958 24623423 49246846 73870269 147740538