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747142474 = 21328736249
BaseRepresentation
bin101100100010000…
…111110101001010
31221001212202210111
4230202013311022
53012232024344
6202045504534
724341414641
oct5442076512
91831782714
10747142474
11353819221
1218a27214a
13bba36c50
147132a358
15458d5834
hex2c887d4a

747142474 has 8 divisors (see below), whose sum is σ = 1206922500. Its totient is φ = 344834976.

The previous prime is 747142447. The next prime is 747142477. The reversal of 747142474 is 474241747.

It can be written as a sum of positive squares in 2 ways, for example, as 563350225 + 183792249 = 23735^2 + 13557^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (747142477) 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, 14368099 + ... + 14368150.

Almost surely, 2747142474 is an apocalyptic number.

747142474 is a deficient number, since it is larger than the sum of its proper divisors (459780026).

747142474 is a wasteful number, since it uses less digits than its factorization.

747142474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28736264.

The product of its digits is 175616, while the sum is 40.

The square root of 747142474 is about 27333.9070386946. The cubic root of 747142474 is about 907.4049457873.

The spelling of 747142474 in words is "seven hundred forty-seven million, one hundred forty-two thousand, four hundred seventy-four".

Divisors: 1 2 13 26 28736249 57472498 373571237 747142474