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1228160097 = 3345487411
BaseRepresentation
bin100100100110100…
…0011110001100001
310011120222222221000
41021031003301201
510003402110342
6321511422213
742302121453
oct11115036141
93146888830
101228160097
1158029a94a
122a3384969
131675a3b68
14b91802d3
1572c4e44c
hex49343c61

1228160097 has 8 divisors (see below), whose sum is σ = 1819496480. Its totient is φ = 818773380.

The previous prime is 1228160069. The next prime is 1228160099. The reversal of 1228160097 is 7900618221.

It is not a de Polignac number, because 1228160097 - 26 = 1228160033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228160099) 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 7 ways as a sum of consecutive naturals, for example, 22743679 + ... + 22743732.

It is an arithmetic number, because the mean of its divisors is an integer number (227437060).

Almost surely, 21228160097 is an apocalyptic number.

It is an amenable number.

1228160097 is a deficient number, since it is larger than the sum of its proper divisors (591336383).

1228160097 is an equidigital number, since it uses as much as digits as its factorization.

1228160097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45487420 (or 45487414 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1228160097 is about 35045.1151660256. The cubic root of 1228160097 is about 1070.9067624347.

The spelling of 1228160097 in words is "one billion, two hundred twenty-eight million, one hundred sixty thousand, ninety-seven".

Divisors: 1 3 9 27 45487411 136462233 409386699 1228160097