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75312055100 = 2252753120551
BaseRepresentation
bin100011000100011110…
…0101100001100111100
321012101121220210120002
41012020330230030330
52213214341230400
654333050413432
75304205622522
oct1061074541474
9235347823502
1075312055100
1129a37767757
1212719a31278
137142b35119
143906308312
151e5bb57ed5
hex1188f2c33c

75312055100 has 18 divisors (see below), whose sum is σ = 163427159784. Its totient is φ = 30124822000.

The previous prime is 75312055073. The next prime is 75312055129. The reversal of 75312055100 is 155021357.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 376560176 + ... + 376560375.

Almost surely, 275312055100 is an apocalyptic number.

It is an amenable number.

75312055100 is an abundant number, since it is smaller than the sum of its proper divisors (88115104684).

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

75312055100 is a wasteful number, since it uses less digits than its factorization.

75312055100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753120565 (or 753120558 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

Adding to 75312055100 its reverse (155021357), we get a palindrome (75467076457).

The spelling of 75312055100 in words is "seventy-five billion, three hundred twelve million, fifty-five thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 753120551 1506241102 3012482204 3765602755 7531205510 15062411020 18828013775 37656027550 75312055100