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69054001921 = 1715142416343
BaseRepresentation
bin100000001001111110…
…0000111001100000001
320121020111021202110201
41000103330013030001
52112410311030141
651420054525201
74663136221522
oct1002374071401
9217214252421
1069054001921
1127316202783
1211472066801
136686467288
1434b1124849
151be254a031
hex1013f07301

69054001921 has 16 divisors (see below), whose sum is σ = 73629174528. Its totient is φ = 64536192000.

The previous prime is 69054001879. The next prime is 69054001937. The reversal of 69054001921 is 12910045096.

It is a de Polignac number, because none of the positive numbers 2k-69054001921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69054002921) 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, 10883476 + ... + 10889818.

It is an arithmetic number, because the mean of its divisors is an integer number (4601823408).

Almost surely, 269054001921 is an apocalyptic number.

It is an amenable number.

69054001921 is a deficient number, since it is larger than the sum of its proper divisors (4575172607).

69054001921 is a wasteful number, since it uses less digits than its factorization.

69054001921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10752.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 69054001921 in words is "sixty-nine billion, fifty-four million, one thousand, nine hundred twenty-one".

Divisors: 1 17 151 2567 4241 6343 72097 107831 640391 957793 10886647 16282481 26900663 457311271 4062000113 69054001921