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34431180665 = 572342771653
BaseRepresentation
bin100000000100010000…
…100001111101111001
310021212120100012111112
4200010100201331321
51031003340240130
623452323410105
72326144130630
oct400420417571
9107776305445
1034431180665
111366955a712
12680ab23935
1333294245ab
141948b5c517
15d67b71495
hex804421f79

34431180665 has 16 divisors (see below), whose sum is σ = 49272945408. Its totient is φ = 22583432256.

The previous prime is 34431180653. The next prime is 34431180683. The reversal of 34431180665 is 56608113443.

It is not a de Polignac number, because 34431180665 - 214 = 34431164281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21385022 + ... + 21386631.

It is an arithmetic number, because the mean of its divisors is an integer number (3079559088).

Almost surely, 234431180665 is an apocalyptic number.

34431180665 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34431180665 is a deficient number, since it is larger than the sum of its proper divisors (14841764743).

34431180665 is a wasteful number, since it uses less digits than its factorization.

34431180665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42771688.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 34431180665 in words is "thirty-four billion, four hundred thirty-one million, one hundred eighty thousand, six hundred sixty-five".

Divisors: 1 5 7 23 35 115 161 805 42771653 213858265 299401571 983748019 1497007855 4918740095 6886236133 34431180665