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23423123320 = 2351231475693
BaseRepresentation
bin10101110100001000…
…000111111101111000
32020110101201221122221
4111310020013331320
5340432304421240
614432130453424
71456306156162
oct256410077570
966411657587
1023423123320
119a2a819263
124658434274
1322939386ac
1411c2b91932
1592153ea4a
hex574207f78

23423123320 has 32 divisors (see below), whose sum is σ = 52744950720. Its totient is φ = 9361618560.

The previous prime is 23423123287. The next prime is 23423123323. The reversal of 23423123320 is 2332132432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23423123323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188607 + ... + 287086.

It is an arithmetic number, because the mean of its divisors is an integer number (1648279710).

Almost surely, 223423123320 is an apocalyptic number.

23423123320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23423123320 is an abundant number, since it is smaller than the sum of its proper divisors (29321827400).

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

23423123320 is a wasteful number, since it uses less digits than its factorization.

23423123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476935 (or 476931 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 23423123320 its reverse (2332132432), we get a palindrome (25755255752).

The spelling of 23423123320 in words is "twenty-three billion, four hundred twenty-three million, one hundred twenty-three thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1231 2462 4924 6155 9848 12310 24620 49240 475693 951386 1902772 2378465 3805544 4756930 9513860 19027720 585578083 1171156166 2342312332 2927890415 4684624664 5855780830 11711561660 23423123320