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53123046040 = 2353445738543
BaseRepresentation
bin110001011110011000…
…010101101010011000
312002010020101100101201
4301132120111222120
51332243444433130
640223203123544
73560303304151
oct613630255230
9162106340351
1053123046040
1120590635839
12a3669735b4
135017aa676c
1427dd406928
1515adb41bca
hexc5e615a98

53123046040 has 32 divisors (see below), whose sum is σ = 119533423680. Its totient is φ = 21248050432.

The previous prime is 53123046013. The next prime is 53123046047. The reversal of 53123046040 is 4064032135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53123046047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1359009 + ... + 1397551.

It is an arithmetic number, because the mean of its divisors is an integer number (3735419490).

Almost surely, 253123046040 is an apocalyptic number.

It is an amenable number.

53123046040 is an abundant number, since it is smaller than the sum of its proper divisors (66410377640).

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

53123046040 is a wasteful number, since it uses less digits than its factorization.

53123046040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73011 (or 73007 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 53123046040 its reverse (4064032135), we get a palindrome (57187078175).

The spelling of 53123046040 in words is "fifty-three billion, one hundred twenty-three million, forty-six thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 34457 38543 68914 77086 137828 154172 172285 192715 275656 308344 344570 385430 689140 770860 1378280 1541720 1328076151 2656152302 5312304604 6640380755 10624609208 13280761510 26561523020 53123046040