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1220219048 = 231271201003
BaseRepresentation
bin100100010111011…
…0001000010101000
310011001001112212002
41020232301002220
54444334002143
6321025310132
742144455636
oct11056610250
93131045762
101220219048
115768666a4
122a0795348
13165a53509
14b80b4356
15721d15b8
hex48bb10a8

1220219048 has 16 divisors (see below), whose sum is σ = 2305927680. Its totient is φ = 605305008.

The previous prime is 1220219009. The next prime is 1220219057. The reversal of 1220219048 is 8409120221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220219048.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599486 + ... + 601517.

It is an arithmetic number, because the mean of its divisors is an integer number (144120480).

Almost surely, 21220219048 is an apocalyptic number.

It is an amenable number.

1220219048 is a deficient number, since it is larger than the sum of its proper divisors (1085708632).

1220219048 is a wasteful number, since it uses less digits than its factorization.

1220219048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201136 (or 1201132 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 1220219048 is about 34931.6339154068. The cubic root of 1220219048 is about 1068.5936769504.

Adding to 1220219048 its reverse (8409120221), we get a palindrome (9629339269).

The spelling of 1220219048 in words is "one billion, two hundred twenty million, two hundred nineteen thousand, forty-eight".

Divisors: 1 2 4 8 127 254 508 1016 1201003 2402006 4804012 9608024 152527381 305054762 610109524 1220219048