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20522012302242 = 23211157616576139
BaseRepresentation
bin1001010101010001001110…
…10000001101101110100010
32200122212220022201000212200
410222220213100031232202
510142213040122132432
6111351403213234030
74215444411255453
oct452504720155642
980585808630780
1020522012302242
1165a2377a33a60
122375378492916
13b5b2a99a0209
1450d3b0b0512a
15258c58227a7c
hex12aa2740dba2

20522012302242 has 48 divisors (see below), whose sum is σ = 48509659542240. Its totient is φ = 6218396092800.

The previous prime is 20522012302219. The next prime is 20522012302249. The reversal of 20522012302242 is 24220321022502.

It is a happy number.

20522012302242 is a `hidden beast` number, since 2 + 0 + 5 + 2 + 201 + 230 + 224 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (20522012302249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167392 + ... + 6408747.

It is an arithmetic number, because the mean of its divisors is an integer number (1010617907130).

Almost surely, 220522012302242 is an apocalyptic number.

20522012302242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20522012302242 is an abundant number, since it is smaller than the sum of its proper divisors (27987647239998).

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

20522012302242 is a wasteful number, since it uses less digits than its factorization.

20522012302242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6591919 (or 6591916 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 20522012302242 its reverse (24220321022502), we get a palindrome (44742333324744).

The spelling of 20522012302242 in words is "twenty trillion, five hundred twenty-two billion, twelve million, three hundred two thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 15761 31522 47283 94566 141849 173371 283698 346742 520113 1040226 1560339 3120678 6576139 13152278 19728417 39456834 59185251 72337529 118370502 144675058 217012587 434025174 651037761 1302075522 103646526779 207293053558 310939580337 621879160674 932818741011 1140111794569 1865637482022 2280223589138 3420335383707 6840670767414 10261006151121 20522012302242