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52288719 = 3717149983
BaseRepresentation
bin1100011101110…
…1110011001111
310122101112122020
43013131303033
5101341214334
65104421223
71203306150
oct307356317
9118345566
1052288719
112757431a
1215617813
13aaaa092
146d31927
1548cce49
hex31ddccf

52288719 has 32 divisors (see below), whose sum is σ = 85017600. Its totient is φ = 27904512.

The previous prime is 52288697. The next prime is 52288721. The reversal of 52288719 is 91788225.

It is not a de Polignac number, because 52288719 - 28 = 52288463 is a prime.

It is a super-2 number, since 2×522887192 = 5468220269321922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52288739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52702 + ... + 53684.

It is an arithmetic number, because the mean of its divisors is an integer number (2656800).

Almost surely, 252288719 is an apocalyptic number.

52288719 is a deficient number, since it is larger than the sum of its proper divisors (32728881).

52288719 is a wasteful number, since it uses less digits than its factorization.

52288719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159.

The product of its digits is 80640, while the sum is 42.

The square root of 52288719 is about 7231.0939006488. The cubic root of 52288719 is about 373.9406403929.

The spelling of 52288719 in words is "fifty-two million, two hundred eighty-eight thousand, seven hundred nineteen".

Divisors: 1 3 7 17 21 51 119 149 357 447 983 1043 2533 2949 3129 6881 7599 16711 17731 20643 50133 53193 116977 146467 350931 439401 1025269 2489939 3075807 7469817 17429573 52288719