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75071130 = 2352502371
BaseRepresentation
bin1000111100101…
…11111010011010
312020021000020020
410132113322122
5123204234010
611241011310
71601044161
oct436277232
9166230206
1075071130
1139415062
1221183b36
1312725ab4
149d823d8
1568cd470
hex4797e9a

75071130 has 16 divisors (see below), whose sum is σ = 180170784. Its totient is φ = 20018960.

The previous prime is 75071089. The next prime is 75071137. The reversal of 75071130 is 3117057.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 75071130.

It is not an unprimeable number, because it can be changed into a prime (75071137) 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, 1251156 + ... + 1251215.

It is an arithmetic number, because the mean of its divisors is an integer number (11260674).

Almost surely, 275071130 is an apocalyptic number.

75071130 is an abundant number, since it is smaller than the sum of its proper divisors (105099654).

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

75071130 is a wasteful number, since it uses less digits than its factorization.

75071130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502381.

The product of its (nonzero) digits is 735, while the sum is 24.

The square root of 75071130 is about 8664.3597570738. The cubic root of 75071130 is about 421.8496091166.

Adding to 75071130 its reverse (3117057), we get a palindrome (78188187).

The spelling of 75071130 in words is "seventy-five million, seventy-one thousand, one hundred thirty".