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69870329 = 2112691231
BaseRepresentation
bin1000010101000…
…10001011111001
311212110210001222
410022202023321
5120341322304
610533321425
71505613404
oct412421371
9155423058
1069870329
1136492681
121b496275
13116247b9
1493cad3b
1562024be
hex42a22f9

69870329 has 8 divisors (see below), whose sum is σ = 70519680. Its totient is φ = 69224400.

The previous prime is 69870301. The next prime is 69870371. The reversal of 69870329 is 92307896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69870329 - 212 = 69866233 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69870329.

It is not an unprimeable number, because it can be changed into a prime (69870379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56144 + ... + 57374.

It is an arithmetic number, because the mean of its divisors is an integer number (8814960).

Almost surely, 269870329 is an apocalyptic number.

It is an amenable number.

69870329 is a deficient number, since it is larger than the sum of its proper divisors (649351).

69870329 is a wasteful number, since it uses less digits than its factorization.

69870329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 69870329 is about 8358.8473487677. The cubic root of 69870329 is about 411.8738911643.

The spelling of 69870329 in words is "sixty-nine million, eight hundred seventy thousand, three hundred twenty-nine".

Divisors: 1 211 269 1231 56759 259741 331139 69870329