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69090434 = 278216011
BaseRepresentation
bin1000001111000…
…11110010000010
311211000011020222
410013203302002
5120141343214
610504503042
71466154560
oct407436202
9154004228
1069090434
1135aaa736
121b17aa82
131141081a
149266a30
1560eb38e
hex41e3c82

69090434 has 16 divisors (see below), whose sum is σ = 118604736. Its totient is φ = 29569200.

The previous prime is 69090421. The next prime is 69090449. The reversal of 69090434 is 43409096.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 69090394 and 69090403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8489 + ... + 14499.

It is an arithmetic number, because the mean of its divisors is an integer number (7412796).

Almost surely, 269090434 is an apocalyptic number.

69090434 is a deficient number, since it is larger than the sum of its proper divisors (49514302).

69090434 is a wasteful number, since it uses less digits than its factorization.

69090434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6841.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 69090434 is about 8312.0655675951. The cubic root of 69090434 is about 410.3357036386.

The spelling of 69090434 in words is "sixty-nine million, ninety thousand, four hundred thirty-four".

Divisors: 1 2 7 14 821 1642 5747 6011 11494 12022 42077 84154 4935031 9870062 34545217 69090434