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75506228253 = 3221139761047
BaseRepresentation
bin100011001010010000…
…1011001110000011101
321012220011021211001100
41012110201121300131
52214114043301003
654404224303313
75312054231151
oct1062441316035
9235804254040
1075506228253
112a02732a935
1212772a71b39
13717412c191
143924011061
151e6dc10ba3
hex1194859c1d

75506228253 has 12 divisors (see below), whose sum is σ = 109581448288. Its totient is φ = 50098917960.

The previous prime is 75506228251. The next prime is 75506228299. The reversal of 75506228253 is 35282260557.

75506228253 is a `hidden beast` number, since 75 + 506 + 2 + 28 + 2 + 53 = 666.

It is not a de Polignac number, because 75506228253 - 21 = 75506228251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75506228199 and 75506228208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75506228251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19878625 + ... + 19882422.

Almost surely, 275506228253 is an apocalyptic number.

It is an amenable number.

75506228253 is a deficient number, since it is larger than the sum of its proper divisors (34075220035).

75506228253 is a wasteful number, since it uses less digits than its factorization.

75506228253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39761264 (or 39761261 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 75506228253 in words is "seventy-five billion, five hundred six million, two hundred twenty-eight thousand, two hundred fifty-three".

Divisors: 1 3 9 211 633 1899 39761047 119283141 357849423 8389580917 25168742751 75506228253