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150841813 = 1210912457
BaseRepresentation
bin10001111110110…
…10100111010101
3101111211120001211
420333122213111
5302103414223
622545021421
73511064023
oct1077324725
9344746054
10150841813
1178167761
1242624871
1325335115
1416067713
15d398d0d
hex8fda9d5

150841813 has 4 divisors (see below), whose sum is σ = 150866380. Its totient is φ = 150817248.

The previous prime is 150841787. The next prime is 150841841. The reversal of 150841813 is 318148051.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 142038724 + 8803089 = 11918^2 + 2967^2 .

It is a cyclic number.

It is not a de Polignac number, because 150841813 - 213 = 150833621 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 (150841013) 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, 5881 + ... + 18337.

It is an arithmetic number, because the mean of its divisors is an integer number (37716595).

Almost surely, 2150841813 is an apocalyptic number.

It is an amenable number.

150841813 is a deficient number, since it is larger than the sum of its proper divisors (24567).

150841813 is a wasteful number, since it uses less digits than its factorization.

150841813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24566.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 150841813 is about 12281.7675030917. The cubic root of 150841813 is about 532.3213863104.

Adding to 150841813 its reverse (318148051), we get a palindrome (468989864).

The spelling of 150841813 in words is "one hundred fifty million, eight hundred forty-one thousand, eight hundred thirteen".

Divisors: 1 12109 12457 150841813