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148949280 = 253651277
BaseRepresentation
bin10001110000011…
…00100100100000
3101101021102000000
420320030210200
5301112334110
622440300000
73456022314
oct1070144440
9341242000
10148949280
1177094887
1241a71600
1324b2188c
1415ad3b44
15d1231c0
hex8e0c920

148949280 has 168 divisors, whose sum is σ = 528010812. Its totient is φ = 39688704.

The previous prime is 148949279. The next prime is 148949293. The reversal of 148949280 is 82949841.

148949280 is a `hidden beast` number, since 1 + 4 + 89 + 492 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 148937616 + 11664 = 12204^2 + 108^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 116002 + ... + 117278.

Almost surely, 2148949280 is an apocalyptic number.

148949280 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 148949280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264005406).

148949280 is an abundant number, since it is smaller than the sum of its proper divisors (379061532).

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

148949280 is an equidigital number, since it uses as much as digits as its factorization.

148949280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 148949280 is about 12204.4778667504. The cubic root of 148949280 is about 530.0857580465.

The spelling of 148949280 in words is "one hundred forty-eight million, nine hundred forty-nine thousand, two hundred eighty".