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22030151749 = 191159481671
BaseRepresentation
bin10100100001000110…
…010111000001000101
32002212022121122220021
4110201012113001011
5330104204323444
614042010335141
71406633125444
oct244106270105
962768548807
1022030151749
1193854a0091
124329a2a4b1
13210117b068
1410cdb8cd5b
1588e0d7584
hex521197045

22030151749 has 4 divisors (see below), whose sum is σ = 23189633440. Its totient is φ = 20870670060.

The previous prime is 22030151729. The next prime is 22030151753. The reversal of 22030151749 is 94715103022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22030151749 - 27 = 22030151621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22030151719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579740817 + ... + 579740854.

It is an arithmetic number, because the mean of its divisors is an integer number (5797408360).

Almost surely, 222030151749 is an apocalyptic number.

It is an amenable number.

22030151749 is a deficient number, since it is larger than the sum of its proper divisors (1159481691).

22030151749 is a wasteful number, since it uses less digits than its factorization.

22030151749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159481690.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 22030151749 in words is "twenty-two billion, thirty million, one hundred fifty-one thousand, seven hundred forty-nine".

Divisors: 1 19 1159481671 22030151749