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53111707 = 11191991277
BaseRepresentation
bin1100101010011…
…0101110011011
310200221100120021
43022212232123
5102044033312
65134211311
71213304425
oct312465633
9120840507
1053111707
1127a86680
1215953b37
13b00785c
1470a7815
1549e1c07
hex32a6b9b

53111707 has 16 divisors (see below), whose sum is σ = 61344000. Its totient is φ = 45476640.

The previous prime is 53111701. The next prime is 53111717. The reversal of 53111707 is 70711135.

It is not a de Polignac number, because 53111707 - 211 = 53109659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53111701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40953 + ... + 42229.

It is an arithmetic number, because the mean of its divisors is an integer number (3834000).

Almost surely, 253111707 is an apocalyptic number.

53111707 is a deficient number, since it is larger than the sum of its proper divisors (8232293).

53111707 is a wasteful number, since it uses less digits than its factorization.

53111707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506.

The product of its (nonzero) digits is 735, while the sum is 25.

The square root of 53111707 is about 7287.7779192289. Note that the first 3 decimals coincide. The cubic root of 53111707 is about 375.8922917498.

The spelling of 53111707 in words is "fifty-three million, one hundred eleven thousand, seven hundred seven".

Divisors: 1 11 19 199 209 1277 2189 3781 14047 24263 41591 254123 266893 2795353 4828337 53111707