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1111282141 = 3121032109
BaseRepresentation
bin100001000111100…
…1101000111011101
32212110001222111211
41002033031013131
54233442012031
6302134344421
736352512424
oct10217150735
92773058454
101111282141
115203207a2
122701bb111
13149300cc8
14a78382bb
1567863bb1
hex423cd1dd

1111282141 has 18 divisors (see below), whose sum is σ = 1170180990. Its totient is φ = 1055222640.

The previous prime is 1111282097. The next prime is 1111282187. The reversal of 1111282141 is 1412821111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1019524900 + 91757241 = 31930^2 + 9579^2 .

It is not a de Polignac number, because 1111282141 - 29 = 1111281629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111282541) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10195195 + ... + 10195303.

It is an arithmetic number, because the mean of its divisors is an integer number (65010055).

Almost surely, 21111282141 is an apocalyptic number.

It is an amenable number.

1111282141 is a deficient number, since it is larger than the sum of its proper divisors (58898849).

1111282141 is an equidigital number, since it uses as much as digits as its factorization.

1111282141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 243 counting only the distinct ones).

The product of its digits is 128, while the sum is 22.

The square root of 1111282141 is about 33335.8986829514. The cubic root of 1111282141 is about 1035.7973088878.

The spelling of 1111282141 in words is "one billion, one hundred eleven million, two hundred eighty-two thousand, one hundred forty-one".

Divisors: 1 31 103 109 961 3193 3379 10609 11227 98983 104749 328879 348037 1156381 10195249 10789147 35847811 1111282141