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75022117 = 577130021
BaseRepresentation
bin1000111100010…
…11111100100101
312020011111222221
410132023330211
5123201201432
611235552341
71600451242
oct436137445
9166144887
1075022117
1139391255
122115b6b1
13127096b1
149d6c5c9
1568bdb97
hex478bf25

75022117 has 4 divisors (see below), whose sum is σ = 75152716. Its totient is φ = 74891520.

The previous prime is 75022097. The next prime is 75022133. The reversal of 75022117 is 71122057.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71122057 = 151471007.

It can be written as a sum of positive squares in 2 ways, for example, as 38950081 + 36072036 = 6241^2 + 6006^2 .

It is a cyclic number.

It is not a de Polignac number, because 75022117 - 215 = 74989349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75022091 and 75022100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75022187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64434 + ... + 65587.

It is an arithmetic number, because the mean of its divisors is an integer number (18788179).

Almost surely, 275022117 is an apocalyptic number.

It is an amenable number.

75022117 is a deficient number, since it is larger than the sum of its proper divisors (130599).

75022117 is a wasteful number, since it uses less digits than its factorization.

75022117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130598.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 75022117 is about 8661.5308693094. The cubic root of 75022117 is about 421.7577823551.

The spelling of 75022117 in words is "seventy-five million, twenty-two thousand, one hundred seventeen".

Divisors: 1 577 130021 75022117