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53312142971 = 100153532307
BaseRepresentation
bin110001101001101001…
…101011111001111011
312002121102012110121202
4301221221223321323
51333140402033341
640254040124415
73565060511153
oct615151537173
9162542173552
1053312142971
112067835109a
12a3ba16670b
135048014139
14281a58b763
1515c054579b
hexc69a6be7b

53312142971 has 4 divisors (see below), whose sum is σ = 53312775432. Its totient is φ = 53311510512.

The previous prime is 53312142967. The next prime is 53312143037. The reversal of 53312142971 is 17924121335.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53312142971 - 22 = 53312142967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53312142371) 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, 166001 + ... + 366306.

It is an arithmetic number, because the mean of its divisors is an integer number (13328193858).

Almost surely, 253312142971 is an apocalyptic number.

53312142971 is a deficient number, since it is larger than the sum of its proper divisors (632461).

53312142971 is a wasteful number, since it uses less digits than its factorization.

53312142971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632460.

The product of its digits is 45360, while the sum is 38.

The spelling of 53312142971 in words is "fifty-three billion, three hundred twelve million, one hundred forty-two thousand, nine hundred seventy-one".

Divisors: 1 100153 532307 53312142971