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51424482481501 = 972332275318901
BaseRepresentation
bin10111011000101001100100…
…00000101101010101011101
320202002010120121020222111211
423230110302000231111131
523220014320003402001
6301212025304344421
713555203420633223
oct1354246200552535
9222063517228454
1051424482481501
1115427000800068
1259264ab175111
13229040058649c
14c9ad5b564b13
155e2a07318351
hex2ec53202d55d

51424482481501 has 8 divisors (see below), whose sum is σ = 52177613060664. Its totient is φ = 50675902540800.

The previous prime is 51424482481483. The next prime is 51424482481543. The reversal of 51424482481501 is 10518428442415.

It can be written as a sum of positive squares in 4 ways, for example, as 866623217476 + 50557859264025 = 930926^2 + 7110405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51424482481501 - 225 = 51424448927069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51424482481901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137636850 + ... + 1137682051.

It is an arithmetic number, because the mean of its divisors is an integer number (6522201632583).

Almost surely, 251424482481501 is an apocalyptic number.

It is an amenable number.

51424482481501 is a deficient number, since it is larger than the sum of its proper divisors (753130579163).

51424482481501 is a wasteful number, since it uses less digits than its factorization.

51424482481501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275319231.

The product of its (nonzero) digits is 1638400, while the sum is 49.

The spelling of 51424482481501 in words is "fifty-one trillion, four hundred twenty-four billion, four hundred eighty-two million, four hundred eighty-one thousand, five hundred one".

Divisors: 1 97 233 22601 2275318901 220705933397 530149303933 51424482481501