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108520074 = 234132272
BaseRepresentation
bin1100111011111…
…10001010001010
321120012101120000
412131332022022
5210240120244
614433543430
72455256025
oct635761212
9246171500
10108520074
1156290813
1230414b76
1319637880
14105ac1bc
1597d9169
hex677e28a

108520074 has 60 divisors (see below), whose sum is σ = 263029074. Its totient is φ = 33243696.

The previous prime is 108520063. The next prime is 108520081. The reversal of 108520074 is 470025801.

It can be written as a sum of positive squares in only one way, i.e., 104346225 + 4173849 = 10215^2 + 2043^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 477949 + ... + 478175.

Almost surely, 2108520074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108520074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131514537).

108520074 is an abundant number, since it is smaller than the sum of its proper divisors (154509000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108520074 is an equidigital number, since it uses as much as digits as its factorization.

108520074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 108520074 is about 10417.2968662701. The cubic root of 108520074 is about 476.9835048289.

Adding to 108520074 its reverse (470025801), we get a palindrome (578545875).

The spelling of 108520074 in words is "one hundred eight million, five hundred twenty thousand, seventy-four".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 81 117 162 227 234 351 454 681 702 1053 1362 2043 2106 2951 4086 5902 6129 8853 12258 17706 18387 26559 36774 51529 53118 79677 103058 154587 159354 239031 309174 463761 478062 669877 927522 1339754 1391283 2009631 2782566 4019262 4173849 6028893 8347698 12057786 18086679 36173358 54260037 108520074