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53542454771 = 1321741454547
BaseRepresentation
bin110001110111011000…
…010000010111110011
312010012110120112000102
4301313120100113303
51334123332023041
640332544343015
73603555233141
oct616730202763
9163173515012
1053542454771
1120786357823
12a463314a6b
135083952300
14283cdc0591
1515d588b09b
hexc776105f3

53542454771 has 24 divisors (see below), whose sum is σ = 62885806704. Its totient is φ = 45381872640.

The previous prime is 53542454687. The next prime is 53542454783. The reversal of 53542454771 is 17745424535.

It is a de Polignac number, because none of the positive numbers 2k-53542454771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53542456771) 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 23 ways as a sum of consecutive naturals, for example, 109481 + ... + 345066.

It is an arithmetic number, because the mean of its divisors is an integer number (2620241946).

Almost surely, 253542454771 is an apocalyptic number.

53542454771 is a deficient number, since it is larger than the sum of its proper divisors (9343351933).

53542454771 is a wasteful number, since it uses less digits than its factorization.

53542454771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454631 (or 454618 counting only the distinct ones).

The product of its digits is 2352000, while the sum is 47.

The spelling of 53542454771 in words is "fifty-three billion, five hundred forty-two million, four hundred fifty-four thousand, seven hundred seventy-one".

Divisors: 1 13 17 41 169 221 533 697 2873 6929 9061 117793 454547 5909111 7727299 18636427 76818443 100454887 242273551 316819259 1305913531 3149556163 4118650367 53542454771