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20233331120 = 245252916639
BaseRepresentation
bin10010110110000000…
…000010000110110000
31221020002120201101002
4102312000002012300
5312414213043440
613143422301132
71314254322362
oct226600020660
957202521332
1020233331120
118643208162
123b081277a8
131ba5b321a2
14d9d2a2d32
157d64ab115
hex4b60021b0

20233331120 has 20 divisors (see below), whose sum is σ = 47042495040. Its totient is φ = 8093332416.

The previous prime is 20233331093. The next prime is 20233331137. The reversal of 20233331120 is 2113333202.

It is a tau number, because it is divible by the number of its divisors (20).

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 = 20233331092 and 20233331101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126458240 + ... + 126458399.

It is an arithmetic number, because the mean of its divisors is an integer number (2352124752).

Almost surely, 220233331120 is an apocalyptic number.

20233331120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20233331120 is an abundant number, since it is smaller than the sum of its proper divisors (26809163920).

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

20233331120 is a wasteful number, since it uses less digits than its factorization.

20233331120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252916652 (or 252916646 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20233331120 its reverse (2113333202), we get a palindrome (22346664322).

The spelling of 20233331120 in words is "twenty billion, two hundred thirty-three million, three hundred thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 252916639 505833278 1011666556 1264583195 2023333112 2529166390 4046666224 5058332780 10116665560 20233331120