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474140538 = 232233133659
BaseRepresentation
bin11100010000101…
…100111101111010
31020001011211112200
4130100230331322
51432334444123
6115014251030
714515061634
oct3420547572
91201154480
10474140538
11223704893
12112956a76
13772cc941
1446d83a54
152b95b143
hex1c42cf7a

474140538 has 48 divisors (see below), whose sum is σ = 1075688640. Its totient is φ = 150651072.

The previous prime is 474140531. The next prime is 474140539. The reversal of 474140538 is 835041474.

474140538 is a `hidden beast` number, since 47 + 41 + 40 + 538 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (474140531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127753 + ... + 131411.

It is an arithmetic number, because the mean of its divisors is an integer number (22410180).

Almost surely, 2474140538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 474140538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537844320).

474140538 is an abundant number, since it is smaller than the sum of its proper divisors (601548102).

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

474140538 is a wasteful number, since it uses less digits than its factorization.

474140538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003 (or 4000 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 474140538 is about 21774.7683799392. The cubic root of 474140538 is about 779.7745008891.

The spelling of 474140538 in words is "four hundred seventy-four million, one hundred forty thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 313 414 626 939 1878 2817 3659 5634 7199 7318 10977 14398 21597 21954 32931 43194 64791 65862 84157 129582 168314 252471 504942 757413 1145267 1514826 2290534 3435801 6871602 10307403 20614806 26341141 52682282 79023423 158046846 237070269 474140538