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2120223480 = 233517668529
BaseRepresentation
bin111111001100000…
…0000101011111000
312110202120111211120
41332120000223320
513320234122410
6550215425240
7103353413364
oct17630005370
95422514746
102120223480
119988a1311
124b2085220
1327a34bc0b
141618322a4
15c620e570
hex7e600af8

2120223480 has 32 divisors (see below), whose sum is σ = 6360670800. Its totient is φ = 565392896.

The previous prime is 2120223473. The next prime is 2120223481. The reversal of 2120223480 is 843220212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2120223480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120223481) 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, 8834145 + ... + 8834384.

Almost surely, 22120223480 is an apocalyptic number.

2120223480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120223480 is an abundant number, since it is smaller than the sum of its proper divisors (4240447320).

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

2120223480 is a wasteful number, since it uses less digits than its factorization.

2120223480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17668543 (or 17668539 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 2120223480 is about 46045.8845066527. The cubic root of 2120223480 is about 1284.6767959822.

Adding to 2120223480 its reverse (843220212), we get a palindrome (2963443692).

The spelling of 2120223480 in words is "two billion, one hundred twenty million, two hundred twenty-three thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 17668529 35337058 53005587 70674116 88342645 106011174 141348232 176685290 212022348 265027935 353370580 424044696 530055870 706741160 1060111740 2120223480