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53673431 = 731247343
BaseRepresentation
bin1100110010111…
…1110111010111
310201222220002212
43030233313113
5102220022211
65154224035
71221134210
oct314576727
9121886085
1053673431
112832a709
1215b8501b
13b173436
1471b2407
154aa338b
hex332fdd7

53673431 has 8 divisors (see below), whose sum is σ = 63320064. Its totient is φ = 44521560.

The previous prime is 53673413. The next prime is 53673439. The reversal of 53673431 is 13437635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53673431 - 210 = 53672407 is a prime.

It is a super-2 number, since 2×536734312 = 5761674390623522, 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 (53673439) 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, 123455 + ... + 123888.

It is an arithmetic number, because the mean of its divisors is an integer number (7915008).

Almost surely, 253673431 is an apocalyptic number.

53673431 is a deficient number, since it is larger than the sum of its proper divisors (9646633).

53673431 is a wasteful number, since it uses less digits than its factorization.

53673431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247381.

The product of its digits is 22680, while the sum is 32.

The square root of 53673431 is about 7326.2153258009. The cubic root of 53673431 is about 377.2128272232.

The spelling of 53673431 in words is "fifty-three million, six hundred seventy-three thousand, four hundred thirty-one".

Divisors: 1 7 31 217 247343 1731401 7667633 53673431