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42867818530 = 2537673172153
BaseRepresentation
bin100111111011000111…
…110000000000100010
311002122112100210221121
4213323013300000202
51200243130143110
631405422042454
73045206305525
oct477307600042
9132575323847
1042867818530
11171a88475a9
12838441942a
1340722663c4
142109406bbc
1511ad66acda
hex9fb1f0022

42867818530 has 32 divisors (see below), whose sum is σ = 79365748464. Its totient is φ = 16658804736.

The previous prime is 42867818519. The next prime is 42867818533. The reversal of 42867818530 is 3581876824.

It can be written as a sum of positive squares in 8 ways, for example, as 25648342801 + 17219475729 = 160151^2 + 131223^2 .

It is a super-2 number, since 2×428678185302 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42867818533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162934 + ... + 335086.

Almost surely, 242867818530 is an apocalyptic number.

42867818530 is a deficient number, since it is larger than the sum of its proper divisors (36497929934).

42867818530 is a wasteful number, since it uses less digits than its factorization.

42867818530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172870.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 42867818530 in words is "forty-two billion, eight hundred sixty-seven million, eight hundred eighteen thousand, five hundred thirty".

Divisors: 1 2 5 10 37 74 185 370 673 1346 3365 6730 24901 49802 124505 172153 249010 344306 860765 1721530 6369661 12739322 31848305 63696610 115858969 231717938 579294845 1158589690 4286781853 8573563706 21433909265 42867818530