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34071989 = 77961613
BaseRepresentation
bin1000000111111…
…0010110110101
32101010000222112
42001332112311
532210300424
63214140405
7562415150
oct201762665
971100875
1034071989
1118261876
12b4b1705
13709c553
14474cc97
152ed060e
hex207e5b5

34071989 has 8 divisors (see below), whose sum is σ = 39432960. Its totient is φ = 28834416.

The previous prime is 34071967. The next prime is 34072009. The reversal of 34071989 is 98917043.

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 34071989 - 220 = 33023413 is a prime.

It is a super-2 number, since 2×340719892 = 2321800868832242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34071949) 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, 30254 + ... + 31359.

It is an arithmetic number, because the mean of its divisors is an integer number (4929120).

Almost surely, 234071989 is an apocalyptic number.

It is an amenable number.

34071989 is a deficient number, since it is larger than the sum of its proper divisors (5360971).

34071989 is an equidigital number, since it uses as much as digits as its factorization.

34071989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61699.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 34071989 is about 5837.1216365603. The cubic root of 34071989 is about 324.1896624896.

The spelling of 34071989 in words is "thirty-four million, seventy-one thousand, nine hundred eighty-nine".

Divisors: 1 7 79 553 61613 431291 4867427 34071989