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42520124260 = 22517376933181
BaseRepresentation
bin100111100110011001…
…011001101101100100
311001202022010010002001
4213212121121231210
51144040122434020
631311121455044
73033455043565
oct474631315544
9131668103061
1042520124260
111703a557769
1282a7aa1484
134018209853
1420b517a16c
15118cd8a50a
hex9e6659b64

42520124260 has 48 divisors (see below), whose sum is σ = 94572681840. Its totient is φ = 16002846720.

The previous prime is 42520124233. The next prime is 42520124267. The reversal of 42520124260 is 6242102524.

It can be written as a sum of positive squares in 8 ways, for example, as 2106259236 + 40413865024 = 45894^2 + 201032^2 .

It is not an unprimeable number, because it can be changed into a prime (42520124267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1264870 + ... + 1298050.

It is an arithmetic number, because the mean of its divisors is an integer number (1970264205).

Almost surely, 242520124260 is an apocalyptic number.

It is an amenable number.

42520124260 is an abundant number, since it is smaller than the sum of its proper divisors (52052557580).

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

42520124260 is a wasteful number, since it uses less digits than its factorization.

42520124260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36976 (or 36974 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 42520124260 its reverse (6242102524), we get a palindrome (48762226784).

The spelling of 42520124260 in words is "forty-two billion, five hundred twenty million, one hundred twenty-four thousand, two hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 3769 7538 15076 18845 33181 37690 64073 66362 75380 128146 132724 165905 256292 320365 331810 564077 640730 663620 1128154 1281460 2256308 2820385 5640770 11281540 125059189 250118378 500236756 625295945 1250591890 2126006213 2501183780 4252012426 8504024852 10630031065 21260062130 42520124260