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42120130304 = 28723357791
BaseRepresentation
bin100111001110100011…
…100010111100000000
311000201102110022112002
4213032203202330000
51142230223132204
631203312323132
73020530125500
oct471643427400
9130642408462
1042120130304
111695479634a
1281b5b434a8
133c8339ac35
142077db7a00
151167bc891e
hex9ce8e2f00

42120130304 has 54 divisors (see below), whose sum is σ = 97802407584. Its totient is φ = 18051479040.

The previous prime is 42120130289. The next prime is 42120130307. The reversal of 42120130304 is 40303102124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42120130307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1666352 + ... + 1691439.

It is an arithmetic number, because the mean of its divisors is an integer number (1811155696).

Almost surely, 242120130304 is an apocalyptic number.

It is an amenable number.

42120130304 is an abundant number, since it is smaller than the sum of its proper divisors (55682277280).

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

42120130304 is an equidigital number, since it uses as much as digits as its factorization.

42120130304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357821 (or 3357800 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 42120130304 its reverse (40303102124), we get a palindrome (82423232428).

The spelling of 42120130304 in words is "forty-two billion, one hundred twenty million, one hundred thirty thousand, three hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 392 448 784 896 1568 1792 3136 6272 12544 3357791 6715582 13431164 23504537 26862328 47009074 53724656 94018148 107449312 164531759 188036296 214898624 329063518 376072592 429797248 658127036 752145184 859594496 1316254072 1504290368 2632508144 3008580736 5265016288 6017161472 10530032576 21060065152 42120130304