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149483880 = 233557133
BaseRepresentation
bin10001110100011…
…11000101101000
3101102021120100000
420322033011220
5301231441010
622455543000
73463410030
oct1072170550
9342246300
10149483880
117741a4a7
124208aa60
1324c7b000
1415bd28c0
15d1cb7c0
hex8e8f168

149483880 has 384 divisors, whose sum is σ = 623750400. Its totient is φ = 31539456.

The previous prime is 149483861. The next prime is 149483899. The reversal of 149483880 is 88384941.

149483880 = T120 + T121 + ... + T964.

149483880 is a `hidden beast` number, since 1 + 494 + 83 + 8 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (149483861) and next prime (149483899).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11498754 + ... + 11498766.

It is an arithmetic number, because the mean of its divisors is an integer number (1624350).

Almost surely, 2149483880 is an apocalyptic number.

149483880 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 149483880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311875200).

149483880 is an abundant number, since it is smaller than the sum of its proper divisors (474266520).

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

149483880 is an equidigital number, since it uses as much as digits as its factorization.

149483880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 149483880 is about 12226.3600470459. The cubic root of 149483880 is about 530.7191850444.

The spelling of 149483880 in words is "one hundred forty-nine million, four hundred eighty-three thousand, eight hundred eighty".