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149823450 = 23252747563
BaseRepresentation
bin10001110111000…
…01111111011010
3101102220211010200
420323201333122
5301323322300
622511123030
73466323030
oct1073417732
9342824120
10149823450
1177631637
1242213476
132506973a
1415c80550
15d247200
hex8ee1fda

149823450 has 72 divisors (see below), whose sum is σ = 460039008. Its totient is φ = 34244640.

The previous prime is 149823439. The next prime is 149823461. The reversal of 149823450 is 54328941.

It is an interprime number because it is at equal distance from previous prime (149823439) and next prime (149823461).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20632 + ... + 26931.

Almost surely, 2149823450 is an apocalyptic number.

149823450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149823450 is an abundant number, since it is smaller than the sum of its proper divisors (310215558).

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

149823450 is a wasteful number, since it uses less digits than its factorization.

149823450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47588 (or 47580 counting only the distinct ones).

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

The square root of 149823450 is about 12240.2389682555. The cubic root of 149823450 is about 531.1207445634.

The spelling of 149823450 in words is "one hundred forty-nine million, eight hundred twenty-three thousand, four hundred fifty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 25 30 35 42 45 50 63 70 75 90 105 126 150 175 210 225 315 350 450 525 630 1050 1575 3150 47563 95126 142689 237815 285378 332941 428067 475630 665882 713445 856134 998823 1189075 1426890 1664705 1997646 2140335 2378150 2996469 3329410 3567225 4280670 4994115 5992938 7134450 8323525 9988230 10701675 14982345 16647050 21403350 24970575 29964690 49941150 74911725 149823450