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23220231000 = 233537740077
BaseRepresentation
bin10101101000000010…
…001001101101011000
32012221020221221201120
4111220002021231120
5340023334343000
614400042045240
71451263464321
oct255002115530
965836857646
1023220231000
11993624025a
1246004a9820
1322608aaa75
1411a3c59448
1590d8136a0
hex568089b58

23220231000 has 64 divisors (see below), whose sum is σ = 72447130080. Its totient is φ = 6192060800.

The previous prime is 23220230959. The next prime is 23220231079. The reversal of 23220231000 is 13202232.

It is a super-2 number, since 2×232202310002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3867039 + ... + 3873038.

Almost surely, 223220231000 is an apocalyptic number.

23220231000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23220231000 is an abundant number, since it is smaller than the sum of its proper divisors (49226899080).

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

23220231000 is a wasteful number, since it uses less digits than its factorization.

23220231000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7740101 (or 7740087 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23220231000 its reverse (13202232), we get a palindrome (23233433232).

The spelling of 23220231000 in words is "twenty-three billion, two hundred twenty million, two hundred thirty-one thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 125 150 200 250 300 375 500 600 750 1000 1500 3000 7740077 15480154 23220231 30960308 38700385 46440462 61920616 77400770 92880924 116101155 154801540 185761848 193501925 232202310 309603080 387003850 464404620 580505775 774007700 928809240 967509625 1161011550 1548015400 1935019250 2322023100 2902528875 3870038500 4644046200 5805057750 7740077000 11610115500 23220231000