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150381530 = 251329113353
BaseRepresentation
bin10001111011010…
…10001111011010
3101110222011200022
420331222033122
5301444202110
622531110442
73504136055
oct1075521732
9343864608
10150381530
1177982962
1242442422
1325203770
1415d87a9c
15d307755
hex8f6a3da

150381530 has 64 divisors (see below), whose sum is σ = 305091360. Its totient is φ = 52985856.

The previous prime is 150381499. The next prime is 150381557. The reversal of 150381530 is 35183051.

150381530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 8128201 + 142253329 = 2851^2 + 11927^2 .

It is a super-2 number, since 2×1503815302 = 45229209130281800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 150381530.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425834 + ... + 426186.

Almost surely, 2150381530 is an apocalyptic number.

150381530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

150381530 is an abundant number, since it is smaller than the sum of its proper divisors (154709830).

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

150381530 is a wasteful number, since it uses less digits than its factorization.

150381530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 150381530 is about 12263.0147190648. The cubic root of 150381530 is about 531.7793877714.

The spelling of 150381530 in words is "one hundred fifty million, three hundred eighty-one thousand, five hundred thirty".

Divisors: 1 2 5 10 13 26 29 58 65 113 130 145 226 290 353 377 565 706 754 1130 1469 1765 1885 2938 3277 3530 3770 4589 6554 7345 9178 10237 14690 16385 20474 22945 32770 39889 42601 45890 51185 79778 85202 102370 133081 199445 213005 266162 398890 426010 518557 665405 1037114 1156781 1330810 2313562 2592785 5185570 5783905 11567810 15038153 30076306 75190765 150381530