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42769642461 = 3713419373903
BaseRepresentation
bin100111110101010001…
…001111001111011101
311002101200121221200220
4213311101033033131
51200043012024321
631351553511553
73042604651110
oct476521171735
9132350557626
1042769642461
1117158391457
1283575725b9
134057b10b60
1420da36c577
1511a4c269c6
hex9f544f3dd

42769642461 has 32 divisors (see below), whose sum is σ = 70353776640. Its totient is φ = 22505909184.

The previous prime is 42769642411. The next prime is 42769642493. The reversal of 42769642461 is 16424696724.

It is not a de Polignac number, because 42769642461 - 211 = 42769640413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42769642411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72565 + ... + 301338.

It is an arithmetic number, because the mean of its divisors is an integer number (2198555520).

Almost surely, 242769642461 is an apocalyptic number.

It is an amenable number.

42769642461 is a deficient number, since it is larger than the sum of its proper divisors (27584134179).

42769642461 is a wasteful number, since it uses less digits than its factorization.

42769642461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374345.

The product of its digits is 3483648, while the sum is 51.

The spelling of 42769642461 in words is "forty-two billion, seven hundred sixty-nine million, six hundred forty-two thousand, four hundred sixty-one".

Divisors: 1 3 7 13 21 39 91 273 419 1257 2933 5447 8799 16341 38129 114387 373903 1121709 2617321 4860739 7851963 14582217 34025173 102075519 156665357 469996071 1096657499 2036649641 3289972497 6109948923 14256547487 42769642461