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51452140124 = 22721123864629
BaseRepresentation
bin101111111010110010…
…010101101001011100
311220210210021112101102
4233322302111221130
51320333221440444
635345313532232
73501013655300
oct577262255134
9156723245342
1051452140124
111a903434460
129b7b274078
134b0c875a38
1426c1535d00
1515120d884e
hexbfac95a5c

51452140124 has 36 divisors (see below), whose sum is σ = 114263848440. Its totient is φ = 20046287520.

The previous prime is 51452140099. The next prime is 51452140219. The reversal of 51452140124 is 42104125415.

It is a happy number.

It is a super-3 number, since 3×514521401243 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11930159 + ... + 11934470.

It is an arithmetic number, because the mean of its divisors is an integer number (3173995790).

Almost surely, 251452140124 is an apocalyptic number.

It is an amenable number.

51452140124 is an abundant number, since it is smaller than the sum of its proper divisors (62811708316).

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

51452140124 is a wasteful number, since it uses less digits than its factorization.

51452140124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23864658 (or 23864649 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 51452140124 its reverse (42104125415), we get a palindrome (93556265539).

The spelling of 51452140124 in words is "fifty-one billion, four hundred fifty-two million, one hundred forty thousand, one hundred twenty-four".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 23864629 47729258 95458516 167052403 262510919 334104806 525021838 668209612 1050043676 1169366821 1837576433 2338733642 3675152866 4677467284 7350305732 12863035031 25726070062 51452140124