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53148009 = 323770261
BaseRepresentation
bin1100101010111…
…1100101101001
310201000012100210
43022233211221
5102101214014
65135051333
71213515315
oct312574551
9121005323
1053148009
1128000982
1215970b49
13b01b235
1470b6b45
1549ec859
hex32af969

53148009 has 8 divisors (see below), whose sum is σ = 73945152. Its totient is φ = 33891440.

The previous prime is 53147987. The next prime is 53148031. The reversal of 53148009 is 90084135.

It is an interprime number because it is at equal distance from previous prime (53147987) and next prime (53148031).

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 53148009 - 27 = 53147881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53148079) 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, 385062 + ... + 385199.

It is an arithmetic number, because the mean of its divisors is an integer number (9243144).

Almost surely, 253148009 is an apocalyptic number.

It is an amenable number.

53148009 is a deficient number, since it is larger than the sum of its proper divisors (20797143).

53148009 is a wasteful number, since it uses less digits than its factorization.

53148009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770287.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 53148009 is about 7290.2681020659. The cubic root of 53148009 is about 375.9779133888.

The spelling of 53148009 in words is "fifty-three million, one hundred forty-eight thousand, nine".

Divisors: 1 3 23 69 770261 2310783 17716003 53148009