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150664531 = 532842727
BaseRepresentation
bin10001111101011…
…11010101010011
3101111111112212211
420332233111103
5302032231111
622541132551
73506425123
oct1076572523
9344445784
10150664531
1178056546
124255a157
13252a2514
141601cc83
15d361521
hex8faf553

150664531 has 4 divisors (see below), whose sum is σ = 153507312. Its totient is φ = 147821752.

The previous prime is 150664529. The next prime is 150664543. The reversal of 150664531 is 135466051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135466051 = 719352293.

It is a cyclic number.

It is not a de Polignac number, because 150664531 - 21 = 150664529 is a prime.

It is a super-2 number, since 2×1506645312 = 45399601802899922, 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 = 150664493 and 150664502.

It is not an unprimeable number, because it can be changed into a prime (150664511) 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, 1421311 + ... + 1421416.

It is an arithmetic number, because the mean of its divisors is an integer number (38376828).

Almost surely, 2150664531 is an apocalyptic number.

150664531 is a deficient number, since it is larger than the sum of its proper divisors (2842781).

150664531 is an equidigital number, since it uses as much as digits as its factorization.

150664531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842780.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 150664531 is about 12274.5480975880. The cubic root of 150664531 is about 532.1127615858.

The spelling of 150664531 in words is "one hundred fifty million, six hundred sixty-four thousand, five hundred thirty-one".

Divisors: 1 53 2842727 150664531