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53712207 = 331989341
BaseRepresentation
bin1100110011100…
…1010101001111
310202001212022000
43030321111033
5102222242312
65155123343
71221355233
oct314712517
9122055260
1053712207
112835685a
1215ba3553
13b187c93
1471c25c3
154aaeadc
hex333954f

53712207 has 8 divisors (see below), whose sum is σ = 79573680. Its totient is φ = 35808120.

The previous prime is 53712193. The next prime is 53712233. The reversal of 53712207 is 70221735.

53712207 is a `hidden beast` number, since 537 + 122 + 0 + 7 = 666.

It is not a de Polignac number, because 53712207 - 27 = 53712079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1989341 = 53712207 / (5 + 3 + 7 + 1 + 2 + 2 + 0 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53712277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994644 + ... + 994697.

It is an arithmetic number, because the mean of its divisors is an integer number (9946710).

Almost surely, 253712207 is an apocalyptic number.

53712207 is a deficient number, since it is larger than the sum of its proper divisors (25861473).

53712207 is a wasteful number, since it uses less digits than its factorization.

53712207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989350 (or 1989344 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 53712207 is about 7328.8612348713. The cubic root of 53712207 is about 377.3036436252.

The spelling of 53712207 in words is "fifty-three million, seven hundred twelve thousand, two hundred seven".

Divisors: 1 3 9 27 1989341 5968023 17904069 53712207