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87508420934 = 2116286163277
BaseRepresentation
bin101000101111111101…
…0001000100101000110
322100212121112101012012
41101133322020211012
52413204123432214
6104111213054222
76215353206434
oct1213772104506
9270777471165
1087508420934
1134126249940
1214b62487372
138337880a3c
14434203dd54
15242276603e
hex145fe88946

87508420934 has 16 divisors (see below), whose sum is σ = 143200138896. Its totient is φ = 39775293600.

The previous prime is 87508420931. The next prime is 87508420943. The reversal of 87508420934 is 43902480578.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87508420931) 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, 1351304 + ... + 1414580.

It is an arithmetic number, because the mean of its divisors is an integer number (8950008681).

Almost surely, 287508420934 is an apocalyptic number.

87508420934 is a deficient number, since it is larger than the sum of its proper divisors (55691717962).

87508420934 is a wasteful number, since it uses less digits than its factorization.

87508420934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126151.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 87508420934 in words is "eighty-seven billion, five hundred eight million, four hundred twenty thousand, nine hundred thirty-four".

Divisors: 1 2 11 22 62861 63277 125722 126554 691471 696047 1382942 1392094 3977655497 7955310994 43754210467 87508420934