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69764044 = 2272355939
BaseRepresentation
bin1000010100010…
…00001111001100
311212021101021111
410022020033030
5120324422134
610531141404
71504661500
oct412101714
9155241244
1069764044
113641a839
121b444864
13115b82cc
1493a0300
1561d0c64
hex42883cc

69764044 has 18 divisors (see below), whose sum is σ = 142020060. Its totient is φ = 29898792.

The previous prime is 69764041. The next prime is 69764077. The reversal of 69764044 is 44046796.

It is a junction number, because it is equal to n+sod(n) for n = 69763988 and 69764006.

It is not an unprimeable number, because it can be changed into a prime (69764041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177774 + ... + 178165.

Almost surely, 269764044 is an apocalyptic number.

It is an amenable number.

69764044 is an abundant number, since it is smaller than the sum of its proper divisors (72256016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69764044 is a wasteful number, since it uses less digits than its factorization.

69764044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355957 (or 355948 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 69764044 is about 8352.4872942136. The cubic root of 69764044 is about 411.6649410852.

The spelling of 69764044 in words is "sixty-nine million, seven hundred sixty-four thousand, forty-four".

Divisors: 1 2 4 7 14 28 49 98 196 355939 711878 1423756 2491573 4983146 9966292 17441011 34882022 69764044