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51234042401 = 71790191331
BaseRepresentation
bin101111101101110010…
…010111001000100001
311220020120220000112222
4233231302113020201
51314411403324101
635311523200425
73462425114003
oct575562271041
9156216800488
1051234042401
111a801310403
129b1a216115
134aa6623129
1426a05a2373
1514ecda701b
hexbedc97221

51234042401 has 8 divisors (see below), whose sum is σ = 51962793408. Its totient is φ = 50505490000.

The previous prime is 51234042389. The next prime is 51234042407. The reversal of 51234042401 is 10424043215.

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 51234042401 - 214 = 51234026017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51234042407) 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 7 ways as a sum of consecutive naturals, for example, 515306 + ... + 606636.

It is an arithmetic number, because the mean of its divisors is an integer number (6495349176).

Almost surely, 251234042401 is an apocalyptic number.

It is an amenable number.

51234042401 is a deficient number, since it is larger than the sum of its proper divisors (728751007).

51234042401 is an equidigital number, since it uses as much as digits as its factorization.

51234042401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99303.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 51234042401 its reverse (10424043215), we get a palindrome (61658085616).

The spelling of 51234042401 in words is "fifty-one billion, two hundred thirty-four million, forty-two thousand, four hundred one".

Divisors: 1 71 7901 91331 560971 6484501 721606231 51234042401