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149303808 = 293232401
BaseRepresentation
bin10001110011000…
…11001000000000
3101101221102022200
420321203020000
5301210210213
622452033200
73462030033
oct1071431000
9341842280
10149303808
1177307185
1242002800
1324c17064
1415b8701a
15d193273
hex8e63200

149303808 has 60 divisors (see below), whose sum is σ = 430914198. Its totient is φ = 49766400.

The previous prime is 149303801. The next prime is 149303813. The reversal of 149303808 is 808303941.

149303808 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 75481344 + 73822464 = 8688^2 + 8592^2 .

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

It is not an unprimeable number, because it can be changed into a prime (149303801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11593 + ... + 20808.

Almost surely, 2149303808 is an apocalyptic number.

149303808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

149303808 is an abundant number, since it is smaller than the sum of its proper divisors (281610390).

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

149303808 is an equidigital number, since it uses as much as digits as its factorization.

149303808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32425 (or 32406 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 149303808 is about 12218.9937392569. The cubic root of 149303808 is about 530.5059935725.

The spelling of 149303808 in words is "one hundred forty-nine million, three hundred three thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 512 576 768 1152 1536 2304 4608 32401 64802 97203 129604 194406 259208 291609 388812 518416 583218 777624 1036832 1166436 1555248 2073664 2332872 3110496 4147328 4665744 6220992 8294656 9331488 12441984 16589312 18662976 24883968 37325952 49767936 74651904 149303808