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51423250231245 = 35231314612468131
BaseRepresentation
bin10111011000100111010001…
…00100000010111111001101
320202002000101201120011221110
423230103220210002333031
523220004304024344440
6301211303125122233
713555131035654664
oct1354235044027715
9222060351504843
1051423250231245
1115426529177222
125926206559379
1322902651aca19
14c9ac81a3bddb
155e298405c080
hex2ec4e8902fcd

51423250231245 has 64 divisors (see below), whose sum is σ = 86697539647488. Its totient is φ = 25976574624000.

The previous prime is 51423250231219. The next prime is 51423250231373. The reversal of 51423250231245 is 54213205232415.

51423250231245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51423250231245 - 212 = 51423250227149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19600830 + ... + 22068960.

It is an arithmetic number, because the mean of its divisors is an integer number (1354649056992).

Almost surely, 251423250231245 is an apocalyptic number.

It is an amenable number.

51423250231245 is a deficient number, since it is larger than the sum of its proper divisors (35274289416243).

51423250231245 is a wasteful number, since it uses less digits than its factorization.

51423250231245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468754.

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 51423250231245 in words is "fifty-one trillion, four hundred twenty-three billion, two hundred fifty million, two hundred thirty-one thousand, two hundred forty-five".

Divisors: 1 3 5 15 23 69 115 131 345 393 461 655 1383 1965 2305 3013 6915 9039 10603 15065 31809 45195 53015 60391 159045 181173 301955 905865 1388993 2468131 4166979 6944965 7404393 12340655 20834895 37021965 56767013 170301039 283835065 323325161 851505195 969975483 1137808391 1616625805 3413425173 4849877415 5689041955 7436478703 17067125865 22309436109 26169592993 37182393515 78508778979 111547180545 130847964965 149052899221 392543894895 447158697663 745264496105 2235793488315 3428216682083 10284650046249 17141083410415 51423250231245