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75925052957 = 13235313033677
BaseRepresentation
bin100011010110101111…
…1000101111000011101
321020222100101022112102
41012231133011320131
52220443303143312
654513545214445
75325331205345
oct1065537057035
9236870338472
1075925052957
112a221793056
121286b191425
13720cb31c50
1439638b5d25
151e95891ec2
hex11ad7c5e1d

75925052957 has 32 divisors (see below), whose sum is σ = 87020656128. Its totient is φ = 65704294656.

The previous prime is 75925052927. The next prime is 75925052969.

It is a happy number.

75925052957 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 75925052957 - 224 = 75908275741 is a prime.

It is a super-2 number, since 2×759250529572 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75925052927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20646803 + ... + 20650479.

It is an arithmetic number, because the mean of its divisors is an integer number (2719395504).

Almost surely, 275925052957 is an apocalyptic number.

It is an amenable number.

75925052957 is a deficient number, since it is larger than the sum of its proper divisors (11095603171).

75925052957 is a wasteful number, since it uses less digits than its factorization.

75925052957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5069.

The product of its (nonzero) digits is 9922500, while the sum is 56.

The spelling of 75925052957 in words is "seventy-five billion, nine hundred twenty-five million, fifty-two thousand, nine hundred fifty-seven".

Divisors: 1 13 23 53 299 689 1219 1303 3677 15847 16939 29969 47801 69059 84571 194881 389597 897767 1099423 1588357 2533453 4482263 4791131 20648641 58269419 62284703 110196013 253929943 1432548169 3301089259 5840388689 75925052957