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51025124143 = 741472337643
BaseRepresentation
bin101111100001010101…
…011001101100101111
311212201000202212120201
4233201111121230233
51313444412433033
635235101254331
73454310253610
oct574125315457
9155630685521
1051025124143
111a704396a94
129a802643a7
134a72265766
14268093bc07
1514d988a47d
hexbe1559b2f

51025124143 has 16 divisors (see below), whose sum is σ = 59750966016. Its totient is φ = 42658925760.

The previous prime is 51025124063. The next prime is 51025124201. The reversal of 51025124143 is 34142152015.

It is a cyclic number.

It is not a de Polignac number, because 51025124143 - 29 = 51025123631 is a prime.

It is a super-2 number, since 2×510251241432 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025124543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1336680 + ... + 1374322.

It is an arithmetic number, because the mean of its divisors is an integer number (3734435376).

Almost surely, 251025124143 is an apocalyptic number.

51025124143 is a deficient number, since it is larger than the sum of its proper divisors (8725841873).

51025124143 is a wasteful number, since it uses less digits than its factorization.

51025124143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42414.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 51025124143 its reverse (34142152015), we get a palindrome (85167276158).

The spelling of 51025124143 in words is "fifty-one billion, twenty-five million, one hundred twenty-four thousand, one hundred forty-three".

Divisors: 1 7 41 287 4723 33061 37643 193643 263501 1355501 1543363 10803541 177787889 1244515223 7289303449 51025124143