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53444037 = 319989521
BaseRepresentation
bin1100101111011…
…1110111000101
310201120020102210
43023313313011
5102140202122
65145254033
71216160343
oct313676705
9121506383
1053444037
1128193329
1215a94319
13b0c2bba
147152993
154a5a40c
hex32f7dc5

53444037 has 8 divisors (see below), whose sum is σ = 71617600. Its totient is φ = 35449920.

The previous prime is 53444011. The next prime is 53444047. The reversal of 53444037 is 73044435.

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

It is not a de Polignac number, because 53444037 - 212 = 53439941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53443995 and 53444013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53444047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44164 + ... + 45357.

It is an arithmetic number, because the mean of its divisors is an integer number (8952200).

Almost surely, 253444037 is an apocalyptic number.

It is an amenable number.

53444037 is a deficient number, since it is larger than the sum of its proper divisors (18173563).

53444037 is a wasteful number, since it uses less digits than its factorization.

53444037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89723.

The product of its (nonzero) digits is 20160, while the sum is 30.

The square root of 53444037 is about 7310.5428662993. The cubic root of 53444037 is about 376.6746719089.

The spelling of 53444037 in words is "fifty-three million, four hundred forty-four thousand, thirty-seven".

Divisors: 1 3 199 597 89521 268563 17814679 53444037