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75222433 = 11213172997
BaseRepresentation
bin1000111101111…
…00110110100001
312020112200210001
410132330312201
5123224104213
611244140001
71602244246
oct436746641
9166480701
1075222433
1139508800
1221237601
1312779920
149dc15cd
15690d1dd
hex47bcda1

75222433 has 48 divisors (see below), whose sum is σ = 98537040. Its totient is φ = 56770560.

The previous prime is 75222431. The next prime is 75222439. The reversal of 75222433 is 33422257.

It can be written as a sum of positive squares in 8 ways, for example, as 278784 + 74943649 = 528^2 + 8657^2 .

It is not a de Polignac number, because 75222433 - 21 = 75222431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75222431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 775441 + ... + 775537.

It is an arithmetic number, because the mean of its divisors is an integer number (2052855).

Almost surely, 275222433 is an apocalyptic number.

It is an amenable number.

75222433 is a deficient number, since it is larger than the sum of its proper divisors (23314607).

75222433 is a wasteful number, since it uses less digits than its factorization.

75222433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 167 counting only the distinct ones).

The product of its digits is 10080, while the sum is 28.

The square root of 75222433 is about 8673.0867054354. The cubic root of 75222433 is about 422.1328261979.

It can be divided in two parts, 752224 and 33, that added together give a palindrome (752257).

The spelling of 75222433 in words is "seventy-five million, two hundred twenty-two thousand, four hundred thirty-three".

Divisors: 1 11 13 17 29 97 121 143 187 221 319 377 493 1067 1261 1573 1649 2057 2431 2813 3509 4147 5423 6409 11737 13871 18139 21437 26741 30943 36569 45617 47821 59653 70499 152581 199529 235807 340373 402259 526031 621673 775489 2593877 4424849 5786341 6838403 75222433