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42351731401 = 721127976631
BaseRepresentation
bin100111011100010111…
…000010001011001001
311001022120020212111111
4213130113002023021
51143214020401101
631242304330321
73026341530400
oct473427021311
9131276225444
1042351731401
1116a634a2711
12825b6139a1
133cbc36abc5
14209aa64637
15117d1c6251
hex9dc5c22c9

42351731401 has 12 divisors (see below), whose sum is σ = 49271310720. Its totient is φ = 36297791880.

The previous prime is 42351731369. The next prime is 42351731417. The reversal of 42351731401 is 10413715324.

It is not a de Polignac number, because 42351731401 - 25 = 42351731369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42351731701) 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 11 ways as a sum of consecutive naturals, for example, 514356 + ... + 590986.

It is an arithmetic number, because the mean of its divisors is an integer number (4105942560).

Almost surely, 242351731401 is an apocalyptic number.

It is an amenable number.

42351731401 is a deficient number, since it is larger than the sum of its proper divisors (6919579319).

42351731401 is a wasteful number, since it uses less digits than its factorization.

42351731401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87924 (or 87917 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 42351731401 in words is "forty-two billion, three hundred fifty-one million, seven hundred thirty-one thousand, four hundred one".

Divisors: 1 7 49 11279 76631 78953 536417 552671 3754919 864321049 6050247343 42351731401