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69000693449 = 611131158909
BaseRepresentation
bin100000001000011000…
…0110000011011001001
320121002202222101222212
41000100300300123021
52112303134142244
651410512154505
74661621134322
oct1002060603311
9217082871885
1069000693449
1127299102296
1211458238a35
1366783c0cbc
1434a8009449
151bdca19d9e
hex1010c306c9

69000693449 has 4 divisors (see below), whose sum is σ = 70131852420. Its totient is φ = 67869534480.

The previous prime is 69000693407. The next prime is 69000693521. The reversal of 69000693449 is 94439600096.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21691398400 + 47309295049 = 147280^2 + 217507^2 .

It is a cyclic number.

It is not a de Polignac number, because 69000693449 - 28 = 69000693193 is a prime.

It is a super-2 number, since 2×690006934492 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69000693397 and 69000693406.

It is not an unprimeable number, because it can be changed into a prime (69000693649) 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, 565579394 + ... + 565579515.

It is an arithmetic number, because the mean of its divisors is an integer number (17532963105).

Almost surely, 269000693449 is an apocalyptic number.

It is an amenable number.

69000693449 is a deficient number, since it is larger than the sum of its proper divisors (1131158971).

69000693449 is a wasteful number, since it uses less digits than its factorization.

69000693449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131158970.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 69000693449 in words is "sixty-nine billion, six hundred ninety-three thousand, four hundred forty-nine".

Divisors: 1 61 1131158909 69000693449