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75223061 = 122361507
BaseRepresentation
bin1000111101111…
…01000000010101
312020112201122022
410132331000111
5123224114221
611244142525
71602246134
oct436750025
9166481568
1075223061
1139509221
1221237a45
1312779cb4
149dc191b
15690d4ab
hex47bd015

75223061 has 4 divisors (see below), whose sum is σ = 75285792. Its totient is φ = 75160332.

The previous prime is 75223021. The next prime is 75223091. The reversal of 75223061 is 16032257.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75223061 - 222 = 71028757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75223061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75223021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 29531 + ... + 31976.

It is an arithmetic number, because the mean of its divisors is an integer number (18821448).

Almost surely, 275223061 is an apocalyptic number.

It is an amenable number.

75223061 is a deficient number, since it is larger than the sum of its proper divisors (62731).

75223061 is a wasteful number, since it uses less digits than its factorization.

75223061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62730.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 75223061 is about 8673.1229093101. The cubic root of 75223061 is about 422.1340009302.

The spelling of 75223061 in words is "seventy-five million, two hundred twenty-three thousand, sixty-one".

Divisors: 1 1223 61507 75223061