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42901222210925 = 52131711368716169
BaseRepresentation
bin10011100000100101110000…
…00111000011110101101101
312121220022112221100200201012
421300102320013003311231
521110343200341222200
6231124314400555005
712015340164665351
oct1160227007036555
9177808487320635
1042901222210925
1112740340561921
12498a664622a65
131ac274c887c60
14a846047c3461
154e5e5c69ca35
hex2704b81c3d6d

42901222210925 has 48 divisors (see below), whose sum is σ = 61196422084560. Its totient is φ = 29553449533440.

The previous prime is 42901222210849. The next prime is 42901222210943. The reversal of 42901222210925 is 52901222210924.

It can be written as a sum of positive squares in 24 ways, for example, as 40157302846441 + 2743919364484 = 6336979^2 + 1656478^2 .

It is not a de Polignac number, because 42901222210925 - 226 = 42901155102061 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33733760 + ... + 34982409.

It is an arithmetic number, because the mean of its divisors is an integer number (1274925460095).

Almost surely, 242901222210925 is an apocalyptic number.

It is an amenable number.

42901222210925 is a deficient number, since it is larger than the sum of its proper divisors (18295199873635).

42901222210925 is a wasteful number, since it uses less digits than its factorization.

42901222210925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68716322 (or 68716317 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

Subtracting 42901222210925 from its reverse (52901222210924), we obtain a palindrome (9999999999999).

The spelling of 42901222210925 in words is "forty-two trillion, nine hundred one billion, two hundred twenty-two million, two hundred ten thousand, nine hundred twenty-five".

Divisors: 1 5 13 17 25 65 85 113 221 325 425 565 1105 1469 1921 2825 5525 7345 9605 24973 36725 48025 124865 624325 68716169 343580845 893310197 1168174873 1717904225 4466550985 5840874365 7764927097 15186273349 22332754925 29204371825 38824635485 75931366745 100944052261 132003760649 194123177425 379656833725 504720261305 660018803245 1716048888437 2523601306525 3300094016225 8580244442185 42901222210925