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20230123232 = 2511193024839
BaseRepresentation
bin10010110101110011…
…110010111011100000
31221012212112201222102
4102311303302323200
5312412402420412
613143225425532
71314215132054
oct226563627340
957185481872
1020230123232
118641417010
123b0703b2a8
131ba527b027
14d9caa9c64
157d60758c2
hex4b5cf2ee0

20230123232 has 48 divisors (see below), whose sum is σ = 45735580800. Its totient is φ = 8711533440.

The previous prime is 20230123231. The next prime is 20230123237. The reversal of 20230123232 is 23232103202.

It is a super-2 number, since 2×202301232322 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20230123231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1505732 + ... + 1519107.

It is an arithmetic number, because the mean of its divisors is an integer number (952824600).

Almost surely, 220230123232 is an apocalyptic number.

20230123232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20230123232 is an abundant number, since it is smaller than the sum of its proper divisors (25505457568).

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

20230123232 is a wasteful number, since it uses less digits than its factorization.

20230123232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024879 (or 3024871 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20230123232 its reverse (23232103202), we get a palindrome (43462226434).

The spelling of 20230123232 in words is "twenty billion, two hundred thirty million, one hundred twenty-three thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 16 19 22 32 38 44 76 88 152 176 209 304 352 418 608 836 1672 3344 6688 3024839 6049678 12099356 24198712 33273229 48397424 57471941 66546458 96794848 114943882 133092916 229887764 266185832 459775528 532371664 632191351 919551056 1064743328 1264382702 1839102112 2528765404 5057530808 10115061616 20230123232