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53942993673 = 323800997613
BaseRepresentation
bin110010001111010000…
…001100001100001001
312011020101021000002120
4302033100030030021
51340433401244143
640440413321453
73616520611062
oct621720141411
9164211230076
1053942993673
1120971460608
12a555496289
135118921c8a
14287a285569
15160ab09383
hexc8f40c309

53942993673 has 16 divisors (see below), whose sum is σ = 75061261440. Its totient is φ = 34393783424.

The previous prime is 53942993653. The next prime is 53942993681. The reversal of 53942993673 is 37639924935.

It is a de Polignac number, because none of the positive numbers 2k-53942993673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53942993653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503815 + ... + 601427.

It is an arithmetic number, because the mean of its divisors is an integer number (4691328840).

Almost surely, 253942993673 is an apocalyptic number.

It is an amenable number.

53942993673 is a deficient number, since it is larger than the sum of its proper divisors (21118267767).

53942993673 is a wasteful number, since it uses less digits than its factorization.

53942993673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105648.

The product of its digits is 33067440, while the sum is 60.

The spelling of 53942993673 in words is "fifty-three billion, nine hundred forty-two million, nine hundred ninety-three thousand, six hundred seventy-three".

Divisors: 1 3 23 69 8009 24027 97613 184207 292839 552621 2245099 6735297 781782517 2345347551 17980997891 53942993673