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150032981 = 741522763
BaseRepresentation
bin10001111000101…
…01001001010101
3101110022110120002
420330111021111
5301402023411
622515421045
73501154640
oct1074251125
9343273502
10150032981
1177764aaa
12422b4785
1325110c17
1415cd6a57
15d28933b
hex8f15255

150032981 has 8 divisors (see below), whose sum is σ = 175648704. Its totient is φ = 125462880.

The previous prime is 150032969. The next prime is 150032999. The reversal of 150032981 is 189230051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 150032981 - 210 = 150031957 is a prime.

It is a super-2 number, since 2×1500329812 = 45019790775492722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150032681) 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, 261095 + ... + 261668.

It is an arithmetic number, because the mean of its divisors is an integer number (21956088).

Almost surely, 2150032981 is an apocalyptic number.

It is an amenable number.

150032981 is a deficient number, since it is larger than the sum of its proper divisors (25615723).

150032981 is an equidigital number, since it uses as much as digits as its factorization.

150032981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522811.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 150032981 is about 12248.7950835990. The cubic root of 150032981 is about 531.3682234512.

The spelling of 150032981 in words is "one hundred fifty million, thirty-two thousand, nine hundred eighty-one".

Divisors: 1 7 41 287 522763 3659341 21433283 150032981