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149766400 = 285273343
BaseRepresentation
bin10001110110101…
…00000100000000
3101102210220212201
420323110010000
5301320011100
622510002544
73465664510
oct1073240400
9342726781
10149766400
11775a2793
12421a6454
1325049794
1415c67840
15d23536a
hex8ed4100

149766400 has 108 divisors (see below), whose sum is σ = 423778432. Its totient is φ = 51333120.

The previous prime is 149766391. The next prime is 149766403. The reversal of 149766400 is 4667941.

It is a self number, because there is not a number n which added to its sum of digits gives 149766400.

It is not an unprimeable number, because it can be changed into a prime (149766403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43129 + ... + 46471.

Almost surely, 2149766400 is an apocalyptic number.

149766400 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 149766400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211889216).

149766400 is an abundant number, since it is smaller than the sum of its proper divisors (274012032).

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

149766400 is an equidigital number, since it uses as much as digits as its factorization.

149766400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376 (or 3357 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 149766400 is about 12237.9083180093. The cubic root of 149766400 is about 531.0533223513.

The spelling of 149766400 in words is "one hundred forty-nine million, seven hundred sixty-six thousand, four hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 64 70 80 100 112 128 140 160 175 200 224 256 280 320 350 400 448 560 640 700 800 896 1120 1280 1400 1600 1792 2240 2800 3200 3343 4480 5600 6400 6686 8960 11200 13372 16715 22400 23401 26744 33430 44800 46802 53488 66860 83575 93604 106976 117005 133720 167150 187208 213952 234010 267440 334300 374416 427904 468020 534880 585025 668600 748832 855808 936040 1069760 1170050 1337200 1497664 1872080 2139520 2340100 2674400 2995328 3744160 4279040 4680200 5348800 5990656 7488320 9360400 10697600 14976640 18720800 21395200 29953280 37441600 74883200 149766400