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145130356 = 2272740461
BaseRepresentation
bin10001010011010…
…00001101110100
3101010002101102101
420221220031310
5244123132411
622222351444
73411405400
oct1051501564
9333071371
10145130356
1174a16648
124072b584
13240b5567
14153bc100
15cb1b8c1
hex8a68374

145130356 has 18 divisors (see below), whose sum is σ = 295444338. Its totient is φ = 62198640.

The previous prime is 145130311. The next prime is 145130369. The reversal of 145130356 is 653031541.

It can be written as a sum of positive squares in only one way, i.e., 114704100 + 30426256 = 10710^2 + 5516^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370035 + ... + 370426.

Almost surely, 2145130356 is an apocalyptic number.

It is an amenable number.

145130356 is an abundant number, since it is smaller than the sum of its proper divisors (150313982).

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

145130356 is a wasteful number, since it uses less digits than its factorization.

145130356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740479 (or 740470 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 145130356 is about 12047.0061011025. The cubic root of 145130356 is about 525.5161738191.

Adding to 145130356 its reverse (653031541), we get a palindrome (798161897).

The spelling of 145130356 in words is "one hundred forty-five million, one hundred thirty thousand, three hundred fifty-six".

Divisors: 1 2 4 7 14 28 49 98 196 740461 1480922 2961844 5183227 10366454 20732908 36282589 72565178 145130356