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53748242787 = 373332443213
BaseRepresentation
bin110010000011101001…
…010001100101100011
312010201210210122002210
4302003221101211203
51340034022232122
640405215213203
73611634345201
oct620351214543
9163653718083
1053748242787
1120881533368
12a500217203
1350b7484c75
14285c46c071
1515e898a40c
hexc83a51963

53748242787 has 8 divisors (see below), whose sum is σ = 71674125904. Its totient is φ = 35827260768.

The previous prime is 53748242771. The next prime is 53748242819. The reversal of 53748242787 is 78724284735.

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

It is not a de Polignac number, because 53748242787 - 24 = 53748242771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53748242707) 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, 1199608 + ... + 1243605.

It is an arithmetic number, because the mean of its divisors is an integer number (8959265738).

Almost surely, 253748242787 is an apocalyptic number.

53748242787 is a deficient number, since it is larger than the sum of its proper divisors (17925883117).

53748242787 is a wasteful number, since it uses less digits than its factorization.

53748242787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450549.

The product of its digits is 21073920, while the sum is 57.

The spelling of 53748242787 in words is "fifty-three billion, seven hundred forty-eight million, two hundred forty-two thousand, seven hundred eighty-seven".

Divisors: 1 3 7333 21999 2443213 7329639 17916080929 53748242787