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421204001312 = 25193697187387
BaseRepresentation
bin1100010000100011011…
…01110000001000100000
31111021012102122020112202
412020101231300020200
523400111211020222
6521255355312332
742300553636553
oct6102155601040
91437172566482
10421204001312
111526a4750426
126977044b6a8
13309475ab793
141655a33a69a
15ae531e0892
hex6211b70220

421204001312 has 48 divisors (see below), whose sum is σ = 873130638240. Its totient is φ = 199462652928.

The previous prime is 421204001291. The next prime is 421204001353. The reversal of 421204001312 is 213100402124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2154083 + ... + 2341469.

It is an arithmetic number, because the mean of its divisors is an integer number (18190221630).

Almost surely, 2421204001312 is an apocalyptic number.

It is an amenable number.

421204001312 is an abundant number, since it is smaller than the sum of its proper divisors (451926636928).

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

421204001312 is a wasteful number, since it uses less digits than its factorization.

421204001312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191113 (or 191105 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 421204001312 its reverse (213100402124), we get a palindrome (634304403436).

The spelling of 421204001312 in words is "four hundred twenty-one billion, two hundred four million, one thousand, three hundred twelve".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 3697 7394 14788 29576 59152 70243 118304 140486 187387 280972 374774 561944 749548 1123888 1499096 2247776 2998192 3560353 5996384 7120706 14241412 28482824 56965648 113931296 692769739 1385539478 2771078956 5542157912 11084315824 13162625041 22168631648 26325250082 52650500164 105301000328 210602000656 421204001312