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34390969 = 192577043
BaseRepresentation
bin1000001100110…
…0001110111001
32101201020112121
42003030032321
532301002334
63225041241
7565214134
oct203141671
971636477
1034390969
111845a498
12b626221
1371817b2
1447d321b
153044db4
hex20cc3b9

34390969 has 8 divisors (see below), whose sum is σ = 36347040. Its totient is φ = 32449536.

The previous prime is 34390943. The next prime is 34390999. The reversal of 34390969 is 96909343.

It is a happy number.

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 34390969 - 219 = 33866681 is a prime.

It is a super-2 number, since 2×343909692 = 2365477497517922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34390999) 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, 1362 + ... + 8404.

It is an arithmetic number, because the mean of its divisors is an integer number (4543380).

Almost surely, 234390969 is an apocalyptic number.

It is an amenable number.

34390969 is a deficient number, since it is larger than the sum of its proper divisors (1956071).

34390969 is a wasteful number, since it uses less digits than its factorization.

34390969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7319.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 34390969 is about 5864.3813825501. The cubic root of 34390969 is about 325.1982033602.

The spelling of 34390969 in words is "thirty-four million, three hundred ninety thousand, nine hundred sixty-nine".

Divisors: 1 19 257 4883 7043 133817 1810051 34390969