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1220053476 = 223101671123
BaseRepresentation
bin100100010111000…
…1000100111100100
310011000202010201210
41020232020213210
54444313202401
6321021551420
742143166135
oct11056104744
93130663653
101220053476
11576763264
122a0715570
131659c6045
14b806dc8c
157219c4d6
hex48b889e4

1220053476 has 12 divisors (see below), whose sum is σ = 2846791472. Its totient is φ = 406684488.

The previous prime is 1220053463. The next prime is 1220053529. The reversal of 1220053476 is 6743500221.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50835550 + ... + 50835573.

Almost surely, 21220053476 is an apocalyptic number.

It is an amenable number.

1220053476 is an abundant number, since it is smaller than the sum of its proper divisors (1626737996).

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

1220053476 is a wasteful number, since it uses less digits than its factorization.

1220053476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101671130 (or 101671128 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1220053476 is about 34929.2638914707. The cubic root of 1220053476 is about 1068.5453421328.

Adding to 1220053476 its reverse (6743500221), we get a palindrome (7963553697).

The spelling of 1220053476 in words is "one billion, two hundred twenty million, fifty-three thousand, four hundred seventy-six".

Divisors: 1 2 3 4 6 12 101671123 203342246 305013369 406684492 610026738 1220053476