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75228101 = 1323311809
BaseRepresentation
bin1000111101111…
…10001111000101
312020112222112222
410132332033011
5123224244401
611244222125
71602266624
oct436761705
9166488488
1075228101
1139511a93
122123a945
131277c390
149dc36bb
15690ec1b
hex47be3c5

75228101 has 16 divisors (see below), whose sum is σ = 84913920. Its totient is φ = 66126720.

The previous prime is 75228053. The next prime is 75228107. The reversal of 75228101 is 10182257.

It is a cyclic number.

It is not a de Polignac number, because 75228101 - 26 = 75228037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75228107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92585 + ... + 93393.

It is an arithmetic number, because the mean of its divisors is an integer number (5307120).

Almost surely, 275228101 is an apocalyptic number.

It is an amenable number.

75228101 is a deficient number, since it is larger than the sum of its proper divisors (9685819).

75228101 is a wasteful number, since it uses less digits than its factorization.

75228101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 75228101 is about 8673.4134572266. The cubic root of 75228101 is about 422.1434284818.

The spelling of 75228101 in words is "seventy-five million, two hundred twenty-eight thousand, one hundred one".

Divisors: 1 13 23 299 311 809 4043 7153 10517 18607 92989 241891 251599 3270787 5786777 75228101