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145401230 = 251310710453
BaseRepresentation
bin10001010101010…
…10010110001110
3101010121010222202
420222222112032
5244210314410
622232241502
73413614202
oct1052522616
9333533882
10145401230
1175091107
1240840292
132417b940
141544cb02
15cb71ca5
hex8aaa58e

145401230 has 32 divisors (see below), whose sum is σ = 284516064. Its totient is φ = 53179776.

The previous prime is 145401229. The next prime is 145401241. The reversal of 145401230 is 32104541.

145401230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1454012302 = 42283035371025800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8684 + ... + 19136.

It is an arithmetic number, because the mean of its divisors is an integer number (8891127).

Almost surely, 2145401230 is an apocalyptic number.

145401230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145401230 is a deficient number, since it is larger than the sum of its proper divisors (139114834).

145401230 is a wasteful number, since it uses less digits than its factorization.

145401230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10580.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 145401230 is about 12058.2432385485. The cubic root of 145401230 is about 525.8429150169.

Adding to 145401230 its reverse (32104541), we get a palindrome (177505771).

The spelling of 145401230 in words is "one hundred forty-five million, four hundred one thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 107 130 214 535 1070 1391 2782 6955 10453 13910 20906 52265 104530 135889 271778 679445 1118471 1358890 2236942 5592355 11184710 14540123 29080246 72700615 145401230