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42300507989 = 155627271807
BaseRepresentation
bin100111011001010011…
…101000011101010101
311001011222212110012002
4213121103220131111
51143112412223424
631233234405045
73025150246115
oct473123503525
9131158773162
1042300507989
1116a37596813
128246430785
133cb18749ac
142093d2d045
151178958cae
hex9d94e8755

42300507989 has 4 divisors (see below), whose sum is σ = 42300935424. Its totient is φ = 42300080556.

The previous prime is 42300507979. The next prime is 42300508007. The reversal of 42300507989 is 98970500324.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42300507989 is a prime.

It is a super-2 number, since 2×423005079892 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42300507979) 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 3 ways as a sum of consecutive naturals, for example, 19724 + ... + 291530.

It is an arithmetic number, because the mean of its divisors is an integer number (10575233856).

Almost surely, 242300507989 is an apocalyptic number.

It is an amenable number.

42300507989 is a deficient number, since it is larger than the sum of its proper divisors (427435).

42300507989 is a wasteful number, since it uses less digits than its factorization.

42300507989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427434.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 42300507989 in words is "forty-two billion, three hundred million, five hundred seven thousand, nine hundred eighty-nine".

Divisors: 1 155627 271807 42300507989