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145247167 = 131729131173
BaseRepresentation
bin10001010100001…
…00101110111111
3101010022022122201
420222010232333
5244140402132
622225052331
73412403062
oct1052045677
9333268581
10145247167
1174a9638a
12407870a7
1324126790
141540c8d9
15cb412e7
hex8a84bbf

145247167 has 32 divisors (see below), whose sum is σ = 173638080. Its totient is φ = 120207360.

The previous prime is 145247119. The next prime is 145247197. The reversal of 145247167 is 761742541.

It is not a de Polignac number, because 145247167 - 211 = 145245119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145247117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 839493 + ... + 839665.

It is an arithmetic number, because the mean of its divisors is an integer number (5426190).

Almost surely, 2145247167 is an apocalyptic number.

145247167 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

145247167 is a deficient number, since it is larger than the sum of its proper divisors (28390913).

145247167 is a wasteful number, since it uses less digits than its factorization.

145247167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its digits is 47040, while the sum is 37.

The square root of 145247167 is about 12051.8532599762. The cubic root of 145247167 is about 525.6571266599.

The spelling of 145247167 in words is "one hundred forty-five million, two hundred forty-seven thousand, one hundred sixty-seven".

Divisors: 1 13 17 29 131 173 221 377 493 1703 2227 2249 2941 3799 5017 6409 22663 28951 38233 49387 64583 65221 85289 294619 385271 657227 839579 1108757 5008523 8543951 11172859 145247167