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22904397709 = 313977332539
BaseRepresentation
bin10101010101001101…
…010101111110001101
32012010020122221220021
4111111031111332031
5333402011211314
614304440422141
71440410111464
oct252515257615
965106587807
1022904397709
119793a32006
124532777951
13221032826b
141173d239db
158e0c28324
hex555355f8d

22904397709 has 16 divisors (see below), whose sum is σ = 23744488960. Its totient is φ = 22070854080.

The previous prime is 22904397697. The next prime is 22904397713. The reversal of 22904397709 is 90779340922.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22904397709 is a prime.

It is a super-2 number, since 2×229043977092 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22904397409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9019762 + ... + 9022300.

It is an arithmetic number, because the mean of its divisors is an integer number (1484030560).

Almost surely, 222904397709 is an apocalyptic number.

It is an amenable number.

22904397709 is a deficient number, since it is larger than the sum of its proper divisors (840091251).

22904397709 is a wasteful number, since it uses less digits than its factorization.

22904397709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The spelling of 22904397709 in words is "twenty-two billion, nine hundred four million, three hundred ninety-seven thousand, seven hundred nine".

Divisors: 1 31 397 733 2539 12307 22723 78709 291001 1007983 1861087 9021031 31247473 57693697 738851539 22904397709