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51155324301512 = 2373632913840217
BaseRepresentation
bin10111010000110100001101…
…11011101111000011001000
320201010101211111122202002202
423220122012323233003020
523201112101010122022
6300444233114415332
713526564424101264
oct1350320673570310
9221111744582082
1051155324301512
111533293aa51712
1258a22b2731548
132270c07355922
14c8bd065a10a4
155daa0261b592
hex2e8686eef0c8

51155324301512 has 32 divisors (see below), whose sum is σ = 97245523733400. Its totient is φ = 25223295412224.

The previous prime is 51155324301467. The next prime is 51155324301547. The reversal of 51155324301512 is 21510342355115.

51155324301512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 48198389560036 + 2956934741476 = 6942506^2 + 1719574^2 .

It is a super-2 number, since 2×511553243015122 (a number of 28 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 3223973 + ... + 10616244.

Almost surely, 251155324301512 is an apocalyptic number.

It is an amenable number.

51155324301512 is a deficient number, since it is larger than the sum of its proper divisors (46090199431888).

51155324301512 is a wasteful number, since it uses less digits than its factorization.

51155324301512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13846625 (or 13846621 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

Adding to 51155324301512 its reverse (21510342355115), we get a palindrome (72665666656627).

The spelling of 51155324301512 in words is "fifty-one trillion, one hundred fifty-five billion, three hundred twenty-four million, three hundred one thousand, five hundred twelve".

Divisors: 1 2 4 8 73 146 292 584 6329 12658 25316 50632 462017 924034 1848068 3696136 13840217 27680434 55360868 110721736 1010335841 2020671682 4041343364 8082686728 87594733393 175189466786 350378933572 700757867144 6394415537689 12788831075378 25577662150756 51155324301512