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42030213220 = 2254721445141
BaseRepresentation
bin100111001001001100…
…100010100001100100
311000111011021001110201
4213021030202201210
51142034213310340
631150341200244
73015355626532
oct471114424144
9130434231421
1042030213220
1116908a61306
12818ba00084
133c6a877968
14206a08d152
15115ed6679a
hex9c9322864

42030213220 has 24 divisors (see below), whose sum is σ = 88282342008. Its totient is φ = 16808486400.

The previous prime is 42030213209. The next prime is 42030213349. The reversal of 42030213220 is 2231203024.

It can be written as a sum of positive squares in 4 ways, for example, as 15544603684 + 26485609536 = 124678^2 + 162744^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128151 + ... + 316990.

It is an arithmetic number, because the mean of its divisors is an integer number (3678430917).

Almost surely, 242030213220 is an apocalyptic number.

It is an amenable number.

42030213220 is an abundant number, since it is smaller than the sum of its proper divisors (46252128788).

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

42030213220 is a wasteful number, since it uses less digits than its factorization.

42030213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449871 (or 449869 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 42030213220 its reverse (2231203024), we get a palindrome (44261416244).

The spelling of 42030213220 in words is "forty-two billion, thirty million, two hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 4721 9442 18884 23605 47210 94420 445141 890282 1780564 2225705 4451410 8902820 2101510661 4203021322 8406042644 10507553305 21015106610 42030213220