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75567130 = 257556713
BaseRepresentation
bin1001000000100…
…01000000011010
312021012012121121
410200101000122
5123321122010
611255355454
71605211222
oct440210032
9167165547
1075567130
1139723781
1221382b8a
131286a7a2
14a071082
15697a3da
hex481101a

75567130 has 8 divisors (see below), whose sum is σ = 136020852. Its totient is φ = 30226848.

The previous prime is 75567109. The next prime is 75567131. The reversal of 75567130 is 3176557.

It can be written as a sum of positive squares in 2 ways, for example, as 75116889 + 450241 = 8667^2 + 671^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×755671302 = 11420782272873800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75567131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3778347 + ... + 3778366.

Almost surely, 275567130 is an apocalyptic number.

75567130 is a deficient number, since it is larger than the sum of its proper divisors (60453722).

75567130 is a wasteful number, since it uses less digits than its factorization.

75567130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7556720.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 75567130 is about 8692.9356376313. The cubic root of 75567130 is about 422.7766333711.

The spelling of 75567130 in words is "seventy-five million, five hundred sixty-seven thousand, one hundred thirty".

Divisors: 1 2 5 10 7556713 15113426 37783565 75567130