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149354280 = 23345311487
BaseRepresentation
bin10001110011011…
…11011100101000
3101102000222120000
420321233130220
5301213314110
622453103000
73462330135
oct1071573450
9342028500
10149354280
1177341099
1242027a60
1324c3401a
1415b9b58c
15d1a31c0
hex8e6f728

149354280 has 160 divisors (see below), whose sum is σ = 518538240. Its totient is φ = 38517120.

The previous prime is 149354273. The next prime is 149354347. The reversal of 149354280 is 82453941.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 99697 + ... + 101183.

It is an arithmetic number, because the mean of its divisors is an integer number (3240864).

Almost surely, 2149354280 is an apocalyptic number.

149354280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149354280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259269120).

149354280 is an abundant number, since it is smaller than the sum of its proper divisors (369183960).

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

149354280 is a wasteful number, since it uses less digits than its factorization.

149354280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 149354280 is about 12221.0588739274. The cubic root of 149354280 is about 530.5657658410.

The spelling of 149354280 in words is "one hundred forty-nine million, three hundred fifty-four thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 31 36 40 45 54 60 62 72 81 90 93 108 120 124 135 155 162 180 186 216 248 270 279 310 324 360 372 405 465 540 558 620 648 744 810 837 930 1080 1116 1240 1395 1487 1620 1674 1860 2232 2511 2790 2974 3240 3348 3720 4185 4461 5022 5580 5948 6696 7435 8370 8922 10044 11160 11896 12555 13383 14870 16740 17844 20088 22305 25110 26766 29740 33480 35688 40149 44610 46097 50220 53532 59480 66915 80298 89220 92194 100440 107064 120447 133830 138291 160596 178440 184388 200745 230485 240894 267660 276582 321192 368776 401490 414873 460970 481788 535320 553164 602235 691455 802980 829746 921940 963576 1106328 1204470 1244619 1382910 1605960 1659492 1843880 2074365 2408940 2489238 2765820 3318984 3733857 4148730 4817880 4978476 5531640 6223095 7467714 8297460 9956952 12446190 14935428 16594920 18669285 24892380 29870856 37338570 49784760 74677140 149354280