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1220098148 = 221916053923
BaseRepresentation
bin100100010111001…
…0011100001100100
310011000211102000022
41020232103201210
54444321120043
6321022534312
742143443313
oct11056234144
93130742008
101220098148
11576793885
122a0737398
13165a10489
14b808227a
15721aa868
hex48b93864

1220098148 has 12 divisors (see below), whose sum is σ = 2247549360. Its totient is φ = 577941192.

The previous prime is 1220098147. The next prime is 1220098153. The reversal of 1220098148 is 8418900221.

It is not an unprimeable number, because it can be changed into a prime (1220098141) by changing a digit.

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, 8026886 + ... + 8027037.

It is an arithmetic number, because the mean of its divisors is an integer number (187295780).

Almost surely, 21220098148 is an apocalyptic number.

It is an amenable number.

1220098148 is a deficient number, since it is larger than the sum of its proper divisors (1027451212).

1220098148 is a wasteful number, since it uses less digits than its factorization.

1220098148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16053946 (or 16053944 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 1220098148 is about 34929.9033494225. The cubic root of 1220098148 is about 1068.5583834942.

Adding to 1220098148 its reverse (8418900221), we get a palindrome (9638998369).

The spelling of 1220098148 in words is "one billion, two hundred twenty million, ninety-eight thousand, one hundred forty-eight".

Divisors: 1 2 4 19 38 76 16053923 32107846 64215692 305024537 610049074 1220098148