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42457296697 = 1719131446739
BaseRepresentation
bin100111100010101001…
…101110111100111001
311001120220220010212021
4213202221232330321
51143423031443242
631300555114441
73032063032054
oct474251567471
9131526803767
1042457296697
1117008045462
12828aa42a21
1340081ac88a
1420aaaa3a9b
1511875c9b67
hex9e2a6ef39

42457296697 has 8 divisors (see below), whose sum is σ = 47320826400. Its totient is φ = 37856660544.

The previous prime is 42457296691. The next prime is 42457296703. The reversal of 42457296697 is 79669275424.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42457296691) and next prime (42457296703).

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 42457296697 - 23 = 42457296689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42457296691) 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, 65723047 + ... + 65723692.

It is an arithmetic number, because the mean of its divisors is an integer number (5915103300).

Almost surely, 242457296697 is an apocalyptic number.

It is an amenable number.

42457296697 is a deficient number, since it is larger than the sum of its proper divisors (4863529703).

42457296697 is a wasteful number, since it uses less digits than its factorization.

42457296697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131446775.

The product of its digits is 45722880, while the sum is 61.

The spelling of 42457296697 in words is "forty-two billion, four hundred fifty-seven million, two hundred ninety-six thousand, six hundred ninety-seven".

Divisors: 1 17 19 323 131446739 2234594563 2497488041 42457296697