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42724031260 = 22510327774873
BaseRepresentation
bin100111110010100011…
…001111101100011100
311002021111210122220011
4213302203033230130
51144444323000020
631343244133004
73041512162621
oct476243175434
9132244718804
1042724031260
1117134669049
128344237164
13404b531291
1420d4298348
1511a0c1735a
hex9f28cfb1c

42724031260 has 48 divisors (see below), whose sum is σ = 90919797696. Its totient is φ = 16862372352.

The previous prime is 42724031221. The next prime is 42724031261. The reversal of 42724031260 is 6213042724.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42724031261) 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, 533184 + ... + 608056.

It is an arithmetic number, because the mean of its divisors is an integer number (1894162452).

Almost surely, 242724031260 is an apocalyptic number.

It is an amenable number.

42724031260 is an abundant number, since it is smaller than the sum of its proper divisors (48195766436).

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

42724031260 is a wasteful number, since it uses less digits than its factorization.

42724031260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75262 (or 75260 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 42724031260 its reverse (6213042724), we get a palindrome (48937073984).

The spelling of 42724031260 in words is "forty-two billion, seven hundred twenty-four million, thirty-one thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 103 206 277 412 515 554 1030 1108 1385 2060 2770 5540 28531 57062 74873 114124 142655 149746 285310 299492 374365 570620 748730 1497460 7711919 15423838 20739821 30847676 38559595 41479642 77119190 82959284 103699105 154238380 207398210 414796420 2136201563 4272403126 8544806252 10681007815 21362015630 42724031260