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150383081 = 197914899
BaseRepresentation
bin10001111011010…
…10100111101001
3101110222020210202
420331222213221
5301444224311
622531121545
73504143432
oct1075524751
9343866722
10150383081
1177984042
12424432b5
1325204394
1415d88489
15d307e3b
hex8f6a9e9

150383081 has 4 divisors (see below), whose sum is σ = 158298000. Its totient is φ = 142468164.

The previous prime is 150383069. The next prime is 150383089. The reversal of 150383081 is 180383051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 180383051 = 1237145823.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-150383081 is a prime.

It is a super-2 number, since 2×1503830812 = 45230142102105122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150383089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3957431 + ... + 3957468.

It is an arithmetic number, because the mean of its divisors is an integer number (39574500).

Almost surely, 2150383081 is an apocalyptic number.

It is an amenable number.

150383081 is a deficient number, since it is larger than the sum of its proper divisors (7914919).

150383081 is an equidigital number, since it uses as much as digits as its factorization.

150383081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7914918.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 150383081 is about 12263.0779578375. The cubic root of 150383081 is about 531.7812159812.

The spelling of 150383081 in words is "one hundred fifty million, three hundred eighty-three thousand, eighty-one".

Divisors: 1 19 7914899 150383081