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42479411769 = 331573311547
BaseRepresentation
bin100111100011111110…
…000110001000111001
311001122110111201001000
4213203332012020321
51143444212134034
631303105115213
73032452020354
oct474376061071
9131573451030
1042479411769
111701957a883
128296328b09
13400c953912
1420ad9bd29b
1511894e7599
hex9e3f86239

42479411769 has 8 divisors (see below), whose sum is σ = 62932461920. Its totient is φ = 28319607828.

The previous prime is 42479411749. The next prime is 42479411791. The reversal of 42479411769 is 96711497424.

42479411769 is a `hidden beast` number, since 424 + 7 + 9 + 41 + 176 + 9 = 666.

It is not a de Polignac number, because 42479411769 - 219 = 42478887481 is a prime.

It is a super-2 number, since 2×424794117692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42479411749) 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, 786655747 + ... + 786655800.

It is an arithmetic number, because the mean of its divisors is an integer number (7866557740).

Almost surely, 242479411769 is an apocalyptic number.

It is an amenable number.

42479411769 is a deficient number, since it is larger than the sum of its proper divisors (20453050151).

42479411769 is a wasteful number, since it uses less digits than its factorization.

42479411769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573311556 (or 1573311550 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 42479411769 in words is "forty-two billion, four hundred seventy-nine million, four hundred eleven thousand, seven hundred sixty-nine".

Divisors: 1 3 9 27 1573311547 4719934641 14159803923 42479411769