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75223101 = 3193129919
BaseRepresentation
bin1000111101111…
…01000000111101
312020112201200210
410132331000331
5123224114401
611244143033
71602246222
oct436750075
9166481623
1075223101
1139509258
1221237a79
131277a015
149dc1949
15690d4d6
hex47bd03d

75223101 has 8 divisors (see below), whose sum is σ = 100817920. Its totient is φ = 49888512.

The previous prime is 75223091. The next prime is 75223103. The reversal of 75223101 is 10132257.

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

It is not a de Polignac number, because 75223101 - 211 = 75221053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75223103) 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, 64381 + ... + 65538.

It is an arithmetic number, because the mean of its divisors is an integer number (12602240).

Almost surely, 275223101 is an apocalyptic number.

It is an amenable number.

75223101 is a deficient number, since it is larger than the sum of its proper divisors (25594819).

75223101 is a wasteful number, since it uses less digits than its factorization.

75223101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130115.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 75223101 is about 8673.1252152843. The cubic root of 75223101 is about 422.1340757537.

Adding to 75223101 its reverse (10132257), we get a palindrome (85355358).

The spelling of 75223101 in words is "seventy-five million, two hundred twenty-three thousand, one hundred one".

Divisors: 1 3 193 579 129919 389757 25074367 75223101