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150823631 = 721546233
BaseRepresentation
bin10001111110101…
…10001011001111
3101111210122010102
420333112023033
5302102324011
622544401315
73510660020
oct1077261317
9344718112
10150823631
1178155032
124261623b
1325329a6a
1416060c47
15d39373b
hex8fd62cf

150823631 has 4 divisors (see below), whose sum is σ = 172369872. Its totient is φ = 129277392.

The previous prime is 150823613. The next prime is 150823663. The reversal of 150823631 is 136328051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136328051 = 229595319.

It is a cyclic number.

It is not a de Polignac number, because 150823631 - 214 = 150807247 is a prime.

It is a super-2 number, since 2×1508236312 = 45495535336048322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150823594 and 150823603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150823601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10773110 + ... + 10773123.

It is an arithmetic number, because the mean of its divisors is an integer number (43092468).

Almost surely, 2150823631 is an apocalyptic number.

150823631 is a deficient number, since it is larger than the sum of its proper divisors (21546241).

150823631 is an equidigital number, since it uses as much as digits as its factorization.

150823631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21546240.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 150823631 is about 12281.0272778787. The cubic root of 150823631 is about 532.2999973330.

The spelling of 150823631 in words is "one hundred fifty million, eight hundred twenty-three thousand, six hundred thirty-one".

Divisors: 1 7 21546233 150823631