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53123007447 = 32172916771693
BaseRepresentation
bin110001011110011000…
…001100001111010111
312002010020022101110100
4301132120030033113
51332243442214242
640223202225143
73560303053506
oct613630141727
9162106271410
1053123007447
1120590609844
12a3669551b3
135017a92023
1427dd3d683d
1515adb3554c
hexc5e60c3d7

53123007447 has 48 divisors (see below), whose sum is σ = 84553035840. Its totient is φ = 31989543936.

The previous prime is 53123007433. The next prime is 53123007449. The reversal of 53123007447 is 74470032135.

It is not a de Polignac number, because 53123007447 - 220 = 53121958871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53123007449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 705133 + ... + 776825.

It is an arithmetic number, because the mean of its divisors is an integer number (1761521580).

Almost surely, 253123007447 is an apocalyptic number.

53123007447 is a deficient number, since it is larger than the sum of its proper divisors (31430028393).

53123007447 is a wasteful number, since it uses less digits than its factorization.

53123007447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71912 (or 71909 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 53123007447 in words is "fifty-three billion, one hundred twenty-three million, seven thousand, four hundred forty-seven".

Divisors: 1 3 9 17 29 51 87 153 167 261 493 501 1479 1503 2839 4437 4843 8517 14529 25551 43587 71693 82331 215079 246993 645237 740979 1218781 2079097 3656343 6237291 10969029 11972731 18711873 35344649 35918193 106033947 107754579 203536427 318101841 347209199 610609281 1041627597 1831827843 3124882791 5902556383 17707669149 53123007447