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51440150034 = 23371323592243
BaseRepresentation
bin101111111010000100…
…100110011000010010
311220202221201101002000
4233322010212120102
51320322134300114
635344204534430
73500510026620
oct577204463022
9156687641060
1051440150034
111a8a7695099
129b77251416
134b0a238400
1426bdad4510
15151101ae09
hexbfa126612

51440150034 has 192 divisors, whose sum is σ = 141921331200. Its totient is φ = 13522811328.

The previous prime is 51440150017. The next prime is 51440150063. The reversal of 51440150034 is 43005104415.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 22932517 + ... + 22934759.

It is an arithmetic number, because the mean of its divisors is an integer number (739173600).

Almost surely, 251440150034 is an apocalyptic number.

51440150034 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51440150034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70960665600).

51440150034 is an abundant number, since it is smaller than the sum of its proper divisors (90481181166).

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

51440150034 is a wasteful number, since it uses less digits than its factorization.

51440150034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646 (or 2627 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 51440150034 its reverse (43005104415), we get a palindrome (94445254449).

The spelling of 51440150034 in words is "fifty-one billion, four hundred forty million, one hundred fifty thousand, thirty-four".