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42973543093 = 136154191101
BaseRepresentation
bin101000000001011011…
…000011101010110101
311002220220022011210011
4220001123003222311
51201002211334333
631424120100221
73050632042435
oct500133035265
9132826264704
1042973543093
1117252498a78
1283b3904671
13408b132710
1421194882c5
1511b7aa19cd
hexa016c3ab5

42973543093 has 8 divisors (see below), whose sum is σ = 47037876536. Its totient is φ = 39017592000.

The previous prime is 42973543069. The next prime is 42973543097. The reversal of 42973543093 is 39034537924.

It can be written as a sum of positive squares in 4 ways, for example, as 4448489809 + 38525053284 = 66697^2 + 196278^2 .

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 42973543093 - 25 = 42973543061 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 (42973543097) 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, 27094758 + ... + 27096343.

It is an arithmetic number, because the mean of its divisors is an integer number (5879734567).

Almost surely, 242973543093 is an apocalyptic number.

It is an amenable number.

42973543093 is a deficient number, since it is larger than the sum of its proper divisors (4064333443).

42973543093 is a wasteful number, since it uses less digits than its factorization.

42973543093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54191175.

The product of its (nonzero) digits is 2449440, while the sum is 49.

The spelling of 42973543093 in words is "forty-two billion, nine hundred seventy-three million, five hundred forty-three thousand, ninety-three".

Divisors: 1 13 61 793 54191101 704484313 3305657161 42973543093