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53117207 = 1113228573
BaseRepresentation
bin1100101010100…
…0000100010111
310200221122002222
43022220010113
5102044222312
65134252555
71213326443
oct312500427
9120848088
1053117207
1127a8a820
121595715b
13b00a200
1470a9823
1549e3672
hex32a8117

53117207 has 12 divisors (see below), whose sum is σ = 62748504. Its totient is φ = 44572320.

The previous prime is 53117201. The next prime is 53117219. The reversal of 53117207 is 70271135.

It is not a de Polignac number, because 53117207 - 218 = 52855063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53117201) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 12428 + ... + 16145.

It is an arithmetic number, because the mean of its divisors is an integer number (5229042).

Almost surely, 253117207 is an apocalyptic number.

53117207 is a deficient number, since it is larger than the sum of its proper divisors (9631297).

53117207 is a wasteful number, since it uses less digits than its factorization.

53117207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28610 (or 28597 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 53117207 is about 7288.1552535604. The cubic root of 53117207 is about 375.9052665179.

The spelling of 53117207 in words is "fifty-three million, one hundred seventeen thousand, two hundred seven".

Divisors: 1 11 13 143 169 1859 28573 314303 371449 4085939 4828837 53117207