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149472320 = 265467101
BaseRepresentation
bin10001110100011…
…00010001000000
3101102020222110212
420322030101000
5301231103240
622455413252
73463331234
oct1072142100
9342228425
10149472320
1177411848
1242084228
1324c7597a
1415bcc5c4
15d1c8165
hex8e8c440

149472320 has 28 divisors (see below), whose sum is σ = 355931724. Its totient is φ = 59788800.

The previous prime is 149472307. The next prime is 149472329. The reversal of 149472320 is 23274941.

It can be written as a sum of positive squares in 2 ways, for example, as 72454144 + 77018176 = 8512^2 + 8776^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (149472329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233231 + ... + 233870.

Almost surely, 2149472320 is an apocalyptic number.

149472320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149472320 is an abundant number, since it is smaller than the sum of its proper divisors (206459404).

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

149472320 is an equidigital number, since it uses as much as digits as its factorization.

149472320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467118 (or 467108 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 149472320 is about 12225.8872888637. The cubic root of 149472320 is about 530.7055040331.

The spelling of 149472320 in words is "one hundred forty-nine million, four hundred seventy-two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 467101 934202 1868404 2335505 3736808 4671010 7473616 9342020 14947232 18684040 29894464 37368080 74736160 149472320