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75530333 = 621712149
BaseRepresentation
bin1001000000010…
…00000001011101
312021010100010202
410200020001131
5123313432313
611254513245
71604666024
oct440100135
9167110122
1075530333
11396a906a
1221365825
1312856b08
14a0618bb
15696e558
hex480805d

75530333 has 4 divisors (see below), whose sum is σ = 75548700. Its totient is φ = 75511968.

The previous prime is 75530327. The next prime is 75530341. The reversal of 75530333 is 33303557.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67453369 + 8076964 = 8213^2 + 2842^2 .

It is a cyclic number.

It is not a de Polignac number, because 75530333 - 224 = 58753117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75530296 and 75530305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75535333) 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, 143 + ... + 12291.

It is an arithmetic number, because the mean of its divisors is an integer number (18887175).

Almost surely, 275530333 is an apocalyptic number.

It is an amenable number.

75530333 is a deficient number, since it is larger than the sum of its proper divisors (18367).

75530333 is a wasteful number, since it uses less digits than its factorization.

75530333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18366.

The product of its (nonzero) digits is 14175, while the sum is 29.

The square root of 75530333 is about 8690.8188912208. The cubic root of 75530333 is about 422.7079993077.

The spelling of 75530333 in words is "seventy-five million, five hundred thirty thousand, three hundred thirty-three".

Divisors: 1 6217 12149 75530333