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538001740 = 225231378537
BaseRepresentation
bin100000000100010…
…100000101001100
31101111100022122101
4200010110011030
52100212023430
6125215124444
716221640123
oct4004240514
91344308571
10538001740
11256762741
12130213724
13875cc233
1451648aba
1532372dca
hex2011414c

538001740 has 48 divisors (see below), whose sum is σ = 1187669952. Its totient is φ = 204317696.

The previous prime is 538001731. The next prime is 538001741. The reversal of 538001740 is 47100835.

It is a junction number, because it is equal to n+sod(n) for n = 538001699 and 538001708.

It is not an unprimeable number, because it can be changed into a prime (538001741) 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, 58752 + ... + 67288.

It is an arithmetic number, because the mean of its divisors is an integer number (24743124).

Almost surely, 2538001740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538001740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593834976).

538001740 is an abundant number, since it is smaller than the sum of its proper divisors (649668212).

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

538001740 is a wasteful number, since it uses less digits than its factorization.

538001740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8706 (or 8704 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 538001740 is about 23194.8645178195. The cubic root of 538001740 is about 813.3195782110.

The spelling of 538001740 in words is "five hundred thirty-eight million, one thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 137 230 274 460 548 685 1370 2740 3151 6302 8537 12604 15755 17074 31510 34148 42685 63020 85370 170740 196351 392702 785404 981755 1169569 1963510 2339138 3927020 4678276 5847845 11695690 23391380 26900087 53800174 107600348 134500435 269000870 538001740