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42013122220 = 22517920995591
BaseRepresentation
bin100111001000001011…
…010101111010101100
311000102222002202000201
4213020023111322230
51142020324402340
631144531003244
73015060434536
oct471013257254
9130388082021
1042013122220
11168aa348613
128186139524
133c67172644
142067ac0856
15115d5dc79a
hex9c82d5eac

42013122220 has 48 divisors (see below), whose sum is σ = 88778592000. Its totient is φ = 16700415680.

The previous prime is 42013122197. The next prime is 42013122241. The reversal of 42013122220 is 2222131024.

42013122220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7511625 + ... + 7517215.

It is an arithmetic number, because the mean of its divisors is an integer number (1849554000).

Almost surely, 242013122220 is an apocalyptic number.

It is an amenable number.

42013122220 is an abundant number, since it is smaller than the sum of its proper divisors (46765469780).

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

42013122220 is a wasteful number, since it uses less digits than its factorization.

42013122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7878 (or 7876 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 42013122220 its reverse (2222131024), we get a palindrome (44235253244).

The spelling of 42013122220 in words is "forty-two billion, thirteen million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 179 358 716 895 1790 2099 3580 4198 5591 8396 10495 11182 20990 22364 27955 41980 55910 111820 375721 751442 1000789 1502884 1878605 2001578 3757210 4003156 5003945 7514420 10007890 11735509 20015780 23471018 46942036 58677545 117355090 234710180 2100656111 4201312222 8402624444 10503280555 21006561110 42013122220