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150421213 = 1271398521
BaseRepresentation
bin10001111011100…
…11111011011101
3101111001012010001
420331303323131
5302001434323
622532014301
73504362545
oct1075637335
9344035101
10150421213
11779aa758
1242461391
1325218847
1415d98325
15d3143ad
hex8f73edd

150421213 has 8 divisors (see below), whose sum is σ = 152714240. Its totient is φ = 148145760.

The previous prime is 150421211. The next prime is 150421241. The reversal of 150421213 is 312124051.

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 150421213 - 21 = 150421211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150421211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13393 + ... + 21913.

It is an arithmetic number, because the mean of its divisors is an integer number (19089280).

Almost surely, 2150421213 is an apocalyptic number.

It is an amenable number.

150421213 is a deficient number, since it is larger than the sum of its proper divisors (2293027).

150421213 is a wasteful number, since it uses less digits than its factorization.

150421213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8787.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 150421213 is about 12264.6326076242. The cubic root of 150421213 is about 531.8261593519.

Adding to 150421213 its reverse (312124051), we get a palindrome (462545264).

The spelling of 150421213 in words is "one hundred fifty million, four hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 127 139 8521 17653 1082167 1184419 150421213