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51444027452 = 2269317185539
BaseRepresentation
bin101111111010010011…
…011001000000111100
311220210020000100220002
4233322103121000330
51320324132334302
635344424013432
73500555006216
oct577223310074
9156706010802
1051444027452
111a8a98a3274
129b78601278
134b0ac9523c
1426c04235b6
151511534c02
hexbfa4d903c

51444027452 has 12 divisors (see below), whose sum is σ = 90028832040. Its totient is φ = 25721504016.

The previous prime is 51444027451. The next prime is 51444027469. The reversal of 51444027452 is 25472044415.

It is a super-2 number, since 2×514440274522 (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 (51444027451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184499 + ... + 370037.

It is an arithmetic number, because the mean of its divisors is an integer number (7502402670).

Almost surely, 251444027452 is an apocalyptic number.

It is an amenable number.

51444027452 is a deficient number, since it is larger than the sum of its proper divisors (38584804588).

51444027452 is a wasteful number, since it uses less digits than its factorization.

51444027452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254860 (or 254858 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 38.

The spelling of 51444027452 in words is "fifty-one billion, four hundred forty-four million, twenty-seven thousand, four hundred fifty-two".

Divisors: 1 2 4 69317 138634 185539 277268 371078 742156 12861006863 25722013726 51444027452