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23120104102220 = 22517188927359929
BaseRepresentation
bin1010100000111000100011…
…00101111001100101001100
310000212021000210210100000002
411100130101211321211030
511012244433122232340
6121101121301223432
74604241506220266
oct520342145714514
9100767023710002
1023120104102220
1174041aa031424
1227149b8101b78
13cb92a7749a38
1459d03a238b36
152a1618795715
hex15071197994c

23120104102220 has 48 divisors (see below), whose sum is σ = 51408646410240. Its totient is φ = 8703968937984.

The previous prime is 23120104102153. The next prime is 23120104102231. The reversal of 23120104102220 is 2220140102132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23120104102192 and 23120104102201.

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, 64055216 + ... + 64415144.

It is an arithmetic number, because the mean of its divisors is an integer number (1071013466880).

Almost surely, 223120104102220 is an apocalyptic number.

23120104102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23120104102220 is an abundant number, since it is smaller than the sum of its proper divisors (28288542308020).

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

23120104102220 is a wasteful number, since it uses less digits than its factorization.

23120104102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548882 (or 548880 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 23120104102220 its reverse (2220140102132), we get a palindrome (25340244204352).

The spelling of 23120104102220 in words is "twenty-three trillion, one hundred twenty billion, one hundred four million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 188927 359929 377854 719858 755708 944635 1439716 1799645 1889270 3211759 3599290 3778540 6118793 6423518 7198580 12237586 12847036 16058795 24475172 30593965 32117590 61187930 64235180 122375860 68000306183 136000612366 272001224732 340001530915 680003061830 1156005205111 1360006123660 2312010410222 4624020820444 5780026025555 11560052051110 23120104102220