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145451168 = 257164019
BaseRepresentation
bin10001010101101…
…10100010100000
3101010200200111022
420222312202200
5244213414133
622233305012
73414212612
oct1052664240
9333620438
10145451168
1175115685
1240865168
13241985a5
1415462db2
15cb81998
hex8ab68a0

145451168 has 24 divisors (see below), whose sum is σ = 290394720. Its totient is φ = 71700160.

The previous prime is 145451123. The next prime is 145451183. The reversal of 145451168 is 861154541.

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 3 ways as a sum of consecutive naturals, for example, 29738 + ... + 34281.

It is an arithmetic number, because the mean of its divisors is an integer number (12099780).

Almost surely, 2145451168 is an apocalyptic number.

It is an amenable number.

145451168 is a deficient number, since it is larger than the sum of its proper divisors (144943552).

145451168 is an equidigital number, since it uses as much as digits as its factorization.

145451168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64100 (or 64092 counting only the distinct ones).

The product of its digits is 19200, while the sum is 35.

The square root of 145451168 is about 12060.3137604293. The cubic root of 145451168 is about 525.9031083128.

The spelling of 145451168 in words is "one hundred forty-five million, four hundred fifty-one thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 16 32 71 142 284 568 1136 2272 64019 128038 256076 512152 1024304 2048608 4545349 9090698 18181396 36362792 72725584 145451168