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145023116 = 22730716871
BaseRepresentation
bin10001010010011…
…10000010001100
3101002212221022112
420221032002030
5244111214431
622220203152
73410450630
oct1051160214
9332787275
10145023116
1174953017
12406994b8
13240787c4
1415390dc0
15cae9c2b
hex8a4e08c

145023116 has 24 divisors (see below), whose sum is σ = 291008256. Its totient is φ = 61946640.

The previous prime is 145023089. The next prime is 145023167. The reversal of 145023116 is 611320541.

It is a junction number, because it is equal to n+sod(n) for n = 145023091 and 145023100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161 + ... + 17031.

It is an arithmetic number, because the mean of its divisors is an integer number (12125344).

Almost surely, 2145023116 is an apocalyptic number.

It is an amenable number.

145023116 is an abundant number, since it is smaller than the sum of its proper divisors (145985140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145023116 is a wasteful number, since it uses less digits than its factorization.

145023116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17189 (or 17187 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 145023116 is about 12042.5543801969. The cubic root of 145023116 is about 525.3867034526.

Adding to 145023116 its reverse (611320541), we get a palindrome (756343657).

The spelling of 145023116 in words is "one hundred forty-five million, twenty-three thousand, one hundred sixteen".

Divisors: 1 2 4 7 14 28 307 614 1228 2149 4298 8596 16871 33742 67484 118097 236194 472388 5179397 10358794 20717588 36255779 72511558 145023116