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150532420 = 22510174521
BaseRepresentation
bin10001111100011…
…11000101000100
3101111020211122211
420332033011010
5302014014140
622534233204
73505335013
oct1076170504
9344224584
10150532420
1177a76265
12424b5804
132525734c
1415dc6a7a
15d3372ea
hex8f8f144

150532420 has 24 divisors (see below), whose sum is σ = 319252248. Its totient is φ = 59616000.

The previous prime is 150532411. The next prime is 150532427. The reversal of 150532420 is 24235051.

It can be written as a sum of positive squares in 4 ways, for example, as 63968004 + 86564416 = 7998^2 + 9304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 150532391 and 150532400.

It is not an unprimeable number, because it can be changed into a prime (150532427) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35241 + ... + 39280.

It is an arithmetic number, because the mean of its divisors is an integer number (13302177).

Almost surely, 2150532420 is an apocalyptic number.

150532420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150532420 is an abundant number, since it is smaller than the sum of its proper divisors (168719828).

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

150532420 is a wasteful number, since it uses less digits than its factorization.

150532420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74631 (or 74629 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 150532420 is about 12269.1654157893. The cubic root of 150532420 is about 531.9571874644.

Adding to 150532420 its reverse (24235051), we get a palindrome (174767471).

The spelling of 150532420 in words is "one hundred fifty million, five hundred thirty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 74521 149042 298084 372605 745210 1490420 7526621 15053242 30106484 37633105 75266210 150532420