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149487030 = 232571123753
BaseRepresentation
bin10001110100011…
…11110110110110
3101102021201122200
420322033312312
5301232041110
622500005330
73463422150
oct1072176666
9342251580
10149487030
1177421900
1242090846
1324c7c584
1415bd3ad0
15d1cc6c0
hex8e8fdb6

149487030 has 288 divisors, whose sum is σ = 510898752. Its totient is φ = 29652480.

The previous prime is 149487029. The next prime is 149487031. The reversal of 149487030 is 30784941.

It is a happy number.

149487030 is a `hidden beast` number, since 149 + 487 + 0 + 30 = 666.

149487030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (149487029) and next prime (149487031).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149487031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2820484 + ... + 2820536.

It is an arithmetic number, because the mean of its divisors is an integer number (1773954).

Almost surely, 2149487030 is an apocalyptic number.

149487030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149487030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255449376).

149487030 is an abundant number, since it is smaller than the sum of its proper divisors (361411722).

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

149487030 is a wasteful number, since it uses less digits than its factorization.

149487030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 149487030 is about 12226.4888663917. The cubic root of 149487030 is about 530.7229128793.

The spelling of 149487030 in words is "one hundred forty-nine million, four hundred eighty-seven thousand, thirty".