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42867818531 = 232964269593
BaseRepresentation
bin100111111011000111…
…110000000000100011
311002122112100210221122
4213323013300000203
51200243130143111
631405422042455
73045206305526
oct477307600043
9132575323848
1042867818531
11171a88475aa
12838441942b
1340722663c5
142109406bbd
1511ad66acdb
hex9fb1f0023

42867818531 has 8 divisors (see below), whose sum is σ = 46274107680. Its totient is φ = 39590068672.

The previous prime is 42867818519. The next prime is 42867818533. The reversal of 42867818531 is 13581876824.

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 42867818531 - 26 = 42867818467 is a prime.

It is a super-2 number, since 2×428678185312 (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 (42867818533) 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 7 ways as a sum of consecutive naturals, for example, 32134130 + ... + 32135463.

It is an arithmetic number, because the mean of its divisors is an integer number (5784263460).

Almost surely, 242867818531 is an apocalyptic number.

42867818531 is a deficient number, since it is larger than the sum of its proper divisors (3406289149).

42867818531 is a wasteful number, since it uses less digits than its factorization.

42867818531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64269645.

The product of its digits is 2580480, while the sum is 53.

The spelling of 42867818531 in words is "forty-two billion, eight hundred sixty-seven million, eight hundred eighteen thousand, five hundred thirty-one".

Divisors: 1 23 29 667 64269593 1478200639 1863818197 42867818531