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150839381 = 7114634231
BaseRepresentation
bin10001111110110…
…10000001010101
3101111211102201202
420333122001111
5302103330011
622545002245
73511053650
oct1077320125
9344742652
10150839381
1178165950
1242623385
1325333c94
1416066897
15d39823b
hex8fda055

150839381 has 16 divisors (see below), whose sum is σ = 188510208. Its totient is φ = 117255600.

The previous prime is 150839333. The next prime is 150839387. The reversal of 150839381 is 183938051.

150839381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-150839381 is a prime.

It is a super-2 number, since 2×1508393812 = 45505037720926322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150839387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33536 + ... + 37766.

It is an arithmetic number, because the mean of its divisors is an integer number (11781888).

Almost surely, 2150839381 is an apocalyptic number.

150839381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

150839381 is a deficient number, since it is larger than the sum of its proper divisors (37670827).

150839381 is a wasteful number, since it uses less digits than its factorization.

150839381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4712.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 150839381 is about 12281.6684941420. The cubic root of 150839381 is about 532.3185254489.

The spelling of 150839381 in words is "one hundred fifty million, eight hundred thirty-nine thousand, three hundred eighty-one".

Divisors: 1 7 11 77 463 3241 4231 5093 29617 35651 46541 325787 1958953 13712671 21548483 150839381