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145744485 = 351731103179
BaseRepresentation
bin10001010111111…
…10001001100101
3101011020120211220
420223332021211
5244302310420
622243450553
73416544015
oct1053761145
9334216756
10145744485
11752a5a97
1240986a59
132426bc53
14154dbc45
15cbdd840
hex8afe265

145744485 has 64 divisors (see below), whose sum is σ = 258785280. Its totient is φ = 69719040.

The previous prime is 145744477. The next prime is 145744507. The reversal of 145744485 is 584447541.

It is not a de Polignac number, because 145744485 - 23 = 145744477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 814126 + ... + 814304.

It is an arithmetic number, because the mean of its divisors is an integer number (4043520).

Almost surely, 2145744485 is an apocalyptic number.

145744485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145744485 is a deficient number, since it is larger than the sum of its proper divisors (113040795).

145744485 is a wasteful number, since it uses less digits than its factorization.

145744485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338.

The product of its digits is 358400, while the sum is 42.

The square root of 145744485 is about 12072.4680575266. The cubic root of 145744485 is about 526.2563832274.

The spelling of 145744485 in words is "one hundred forty-five million, seven hundred forty-four thousand, four hundred eighty-five".

Divisors: 1 3 5 15 17 31 51 85 93 103 155 179 255 309 465 515 527 537 895 1545 1581 1751 2635 2685 3043 3193 5253 5549 7905 8755 9129 9579 15215 15965 16647 18437 26265 27745 45645 47895 54281 55311 83235 92185 94333 162843 271405 276555 282999 313429 471665 571547 814215 940287 1414995 1567145 1714641 2857735 4701435 8573205 9716299 29148897 48581495 145744485