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34454302121 = 126892715289
BaseRepresentation
bin100000000101101000…
…101110110110101001
310021221011211220011202
4200011220232312221
51031030300131441
623454511133545
72326544510261
oct400550566651
9107834756152
1034454302121
1113680612158
1268168142b5
13333115b725
14194bc5a7a1
15d69bdc19b
hex805a2eda9

34454302121 has 4 divisors (see below), whose sum is σ = 34457030100. Its totient is φ = 34451574144.

The previous prime is 34454302111. The next prime is 34454302133. The reversal of 34454302121 is 12120345443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12120345443 = 23526971541.

It can be written as a sum of positive squares in 2 ways, for example, as 6635731600 + 27818570521 = 81460^2 + 166789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34454302121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34454302111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344956 + ... + 1370333.

It is an arithmetic number, because the mean of its divisors is an integer number (8614257525).

Almost surely, 234454302121 is an apocalyptic number.

It is an amenable number.

34454302121 is a deficient number, since it is larger than the sum of its proper divisors (2727979).

34454302121 is a wasteful number, since it uses less digits than its factorization.

34454302121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727978.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 34454302121 its reverse (12120345443), we get a palindrome (46574647564).

The spelling of 34454302121 in words is "thirty-four billion, four hundred fifty-four million, three hundred two thousand, one hundred twenty-one".

Divisors: 1 12689 2715289 34454302121