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75054130 = 25371091861
BaseRepresentation
bin1000111100100…
…11110000110010
312020020010220121
410132103300302
5123203213010
611240400454
71600643464
oct436236062
9166203817
1075054130
1139403308
122117612a
131271b138
149d7a134
1568c83da
hex4793c32

75054130 has 32 divisors (see below), whose sum is σ = 140096880. Its totient is φ = 28926720.

The previous prime is 75054127. The next prime is 75054157. The reversal of 75054130 is 3145057.

It can be written as a sum of positive squares in 8 ways, for example, as 28718881 + 46335249 = 5359^2 + 6807^2 .

It is a junction number, because it is equal to n+sod(n) for n = 75054095 and 75054104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39400 + ... + 41260.

Almost surely, 275054130 is an apocalyptic number.

75054130 is a deficient number, since it is larger than the sum of its proper divisors (65042750).

75054130 is a wasteful number, since it uses less digits than its factorization.

75054130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 75054130 is about 8663.3786711652. The cubic root of 75054130 is about 421.8177638309.

Adding to 75054130 its reverse (3145057), we get a palindrome (78199187).

The spelling of 75054130 in words is "seventy-five million, fifty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 37 74 109 185 218 370 545 1090 1861 3722 4033 8066 9305 18610 20165 40330 68857 137714 202849 344285 405698 688570 1014245 2028490 7505413 15010826 37527065 75054130