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150281490 = 23531283571
BaseRepresentation
bin10001111010100…
…01110100010010
3101110210002110010
420331101310102
5301433001430
622525015350
73503241312
oct1075216422
9343702403
10150281490
1177914787
12423b4556
132519a078
1415d5d442
15d2d7cb0
hex8f51d12

150281490 has 64 divisors (see below), whose sum is σ = 374280192. Its totient is φ = 38577600.

The previous prime is 150281489. The next prime is 150281501. The reversal of 150281490 is 94182051.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 262905 + ... + 263475.

It is an arithmetic number, because the mean of its divisors is an integer number (5848128).

Almost surely, 2150281490 is an apocalyptic number.

150281490 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 150281490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187140096).

150281490 is an abundant number, since it is smaller than the sum of its proper divisors (223998702).

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

150281490 is a wasteful number, since it uses less digits than its factorization.

150281490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 150281490 is about 12258.9351087278. The cubic root of 150281490 is about 531.6614410814.

The spelling of 150281490 in words is "one hundred fifty million, two hundred eighty-one thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 283 310 465 566 571 849 930 1142 1415 1698 1713 2830 2855 3426 4245 5710 8490 8565 8773 17130 17546 17701 26319 35402 43865 52638 53103 87730 88505 106206 131595 161593 177010 263190 265515 323186 484779 531030 807965 969558 1615930 2423895 4847790 5009383 10018766 15028149 25046915 30056298 50093830 75140745 150281490