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147541540 = 2257377077
BaseRepresentation
bin10001100101101…
…00111000100100
3101021121212221111
420302310320210
5300232312130
622350154404
73441040156
oct1062647044
9337555844
10147541540
1176313163
12414b2a04
132474abb3
1415848ad6
15ce4602a
hex8cb4e24

147541540 has 12 divisors (see below), whose sum is σ = 309837276. Its totient is φ = 59016608.

The previous prime is 147541523. The next prime is 147541543. The reversal of 147541540 is 45145741.

It can be written as a sum of positive squares in 2 ways, for example, as 110502144 + 37039396 = 10512^2 + 6086^2 .

It is not an unprimeable number, because it can be changed into a prime (147541543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3688519 + ... + 3688558.

It is an arithmetic number, because the mean of its divisors is an integer number (25819773).

Almost surely, 2147541540 is an apocalyptic number.

147541540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147541540 is an abundant number, since it is smaller than the sum of its proper divisors (162295736).

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

147541540 is a wasteful number, since it uses less digits than its factorization.

147541540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7377086 (or 7377084 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 147541540 is about 12146.6678558360. The cubic root of 147541540 is about 528.4104982267.

The spelling of 147541540 in words is "one hundred forty-seven million, five hundred forty-one thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 7377077 14754154 29508308 36885385 73770770 147541540