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1145210218 = 21961494051
BaseRepresentation
bin100010001000010…
…1000010101101010
32221210220201002021
41010100220111222
54321133211333
6305345455054
740244061205
oct10420502552
92853821067
101145210218
11538494429
1227b64148a
1315334cba9
14ac14a93c
156a81682d
hex4442856a

1145210218 has 16 divisors (see below), whose sum is σ = 1837873440. Its totient is φ = 533574000.

The previous prime is 1145210201. The next prime is 1145210221. The reversal of 1145210218 is 8120125411.

It is a junction number, because it is equal to n+sod(n) for n = 1145210192 and 1145210201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244708 + ... + 249343.

It is an arithmetic number, because the mean of its divisors is an integer number (114867090).

Almost surely, 21145210218 is an apocalyptic number.

1145210218 is a deficient number, since it is larger than the sum of its proper divisors (692663222).

1145210218 is a wasteful number, since it uses less digits than its factorization.

1145210218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494133.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 1145210218 is about 33840.9547442149. The cubic root of 1145210218 is about 1046.2329770220.

Adding to 1145210218 its reverse (8120125411), we get a palindrome (9265335629).

The spelling of 1145210218 in words is "one billion, one hundred forty-five million, two hundred ten thousand, two hundred eighteen".

Divisors: 1 2 19 38 61 122 1159 2318 494051 988102 9386969 18773938 30137111 60274222 572605109 1145210218