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53012469 = 317670823
BaseRepresentation
bin1100101000111…
…0011111110101
310200202022102210
43022032133311
5102032344334
65132124033
71212412206
oct312163765
9120668383
1053012469
1127a19064
1215906619
13aca1633
14707d5ad
1549c25e9
hex328e7f5

53012469 has 4 divisors (see below), whose sum is σ = 70683296. Its totient is φ = 35341644.

The previous prime is 53012441. The next prime is 53012471. The reversal of 53012469 is 96421035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53012469 - 25 = 53012437 is a prime.

It is a super-2 number, since 2×530124692 = 5620643738951922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53012429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8835409 + ... + 8835414.

It is an arithmetic number, because the mean of its divisors is an integer number (17670824).

Almost surely, 253012469 is an apocalyptic number.

It is an amenable number.

53012469 is a deficient number, since it is larger than the sum of its proper divisors (17670827).

53012469 is a wasteful number, since it uses less digits than its factorization.

53012469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17670826.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 53012469 is about 7280.9662133538. The cubic root of 53012469 is about 375.6580304249.

The spelling of 53012469 in words is "fifty-three million, twelve thousand, four hundred sixty-nine".

Divisors: 1 3 17670823 53012469