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75684952 = 23717107743
BaseRepresentation
bin1001000001011…
…01110001011000
312021102012020101
410200231301120
5123333404302
611302105144
71606211560
oct440556130
9167365211
1075684952
11397a4252
122141b1b4
13128ac2c5
14a0a1da0
1569a0287
hex482dc58

75684952 has 64 divisors (see below), whose sum is σ = 173560320. Its totient is φ = 30202368.

The previous prime is 75684949. The next prime is 75684967. The reversal of 75684952 is 25948657.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101493 + ... + 102235.

It is an arithmetic number, because the mean of its divisors is an integer number (2711880).

Almost surely, 275684952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75684952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86780160).

75684952 is an abundant number, since it is smaller than the sum of its proper divisors (97875368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75684952 is a wasteful number, since it uses less digits than its factorization.

75684952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 876 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The square root of 75684952 is about 8699.7098802201. The cubic root of 75684952 is about 422.9962461500.

It can be divided in two parts, 75684 and 952, that added together give a triangular number (76636 = T391).

The spelling of 75684952 in words is "seventy-five million, six hundred eighty-four thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 14 17 28 34 56 68 107 119 136 214 238 428 476 743 749 856 952 1486 1498 1819 2972 2996 3638 5201 5944 5992 7276 10402 12631 12733 14552 20804 25262 25466 41608 50524 50932 79501 88417 101048 101864 159002 176834 318004 353668 556507 636008 707336 1113014 1351517 2226028 2703034 4452056 5406068 9460619 10812136 18921238 37842476 75684952