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23072211320 = 2351573673919
BaseRepresentation
bin10101011111001101…
…100000000101111000
32012112221102202220012
4111133031200011320
5334222441230240
614333233321052
71444515363134
oct253715400570
965487382805
1023072211320
11986a730944
12457aa06188
132239023362
14118c3283c4
15900825b65
hex55f360178

23072211320 has 32 divisors (see below), whose sum is σ = 52243142400. Its totient is φ = 9170099328.

The previous prime is 23072211307. The next prime is 23072211343. The reversal of 23072211320 is 2311227032.

It is a super-2 number, since 2×230722113202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1830680 + ... + 1843239.

It is an arithmetic number, because the mean of its divisors is an integer number (1632598200).

Almost surely, 223072211320 is an apocalyptic number.

23072211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23072211320 is an abundant number, since it is smaller than the sum of its proper divisors (29170931080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23072211320 is a wasteful number, since it uses less digits than its factorization.

23072211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674087 (or 3674083 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 23072211320 its reverse (2311227032), we get a palindrome (25383438352).

The spelling of 23072211320 in words is "twenty-three billion, seventy-two million, two hundred eleven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 157 314 628 785 1256 1570 3140 6280 3673919 7347838 14695676 18369595 29391352 36739190 73478380 146956760 576805283 1153610566 2307221132 2884026415 4614442264 5768052830 11536105660 23072211320