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145270134 = 232174111579
BaseRepresentation
bin10001010100010…
…10010101110110
3101010100111011100
420222022111312
5244142121014
622225350530
73412530042
oct1052122566
9333314140
10145270134
1175001669
1240798446
1324134079
1415417022
15cb48009
hex8a8a576

145270134 has 48 divisors (see below), whose sum is σ = 341424720. Its totient is φ = 44459520.

The previous prime is 145270133. The next prime is 145270159. The reversal of 145270134 is 431072541.

145270134 is a `hidden beast` number, since 1 + 4 + 527 + 0 + 134 = 666.

It is a super-2 number, since 2×1452701342 = 42206823664755912, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145270098 and 145270107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145270133) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 6757 + ... + 18335.

It is an arithmetic number, because the mean of its divisors is an integer number (7113015).

Almost surely, 2145270134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145270134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170712360).

145270134 is an abundant number, since it is smaller than the sum of its proper divisors (196154586).

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

145270134 is a wasteful number, since it uses less digits than its factorization.

145270134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11645 (or 11642 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 145270134 is about 12052.8060633199. The cubic root of 145270134 is about 525.6848314595.

The spelling of 145270134 in words is "one hundred forty-five million, two hundred seventy thousand, one hundred thirty-four".

Divisors: 1 2 3 6 9 17 18 34 41 51 82 102 123 153 246 306 369 697 738 1394 2091 4182 6273 11579 12546 23158 34737 69474 104211 196843 208422 393686 474739 590529 949478 1181058 1424217 1771587 2848434 3543174 4272651 8070563 8545302 16141126 24211689 48423378 72635067 145270134