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838508132 = 2271112172237
BaseRepresentation
bin110001111110101…
…001111001100100
32011102210121220202
4301332221321210
53204124230012
6215112050032
726531126060
oct6176517144
92142717822
10838508132
113a0352630
121b4993918
13104946677
147d510aa0
154d931cc2
hex31fa9e64

838508132 has 48 divisors (see below), whose sum is σ = 1831794048. Its totient is φ = 326277120.

The previous prime is 838508131. The next prime is 838508141. The reversal of 838508132 is 231805838.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (838508131) 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 15 ways as a sum of consecutive naturals, for example, 373718 + ... + 375954.

It is an arithmetic number, because the mean of its divisors is an integer number (38162376).

Almost surely, 2838508132 is an apocalyptic number.

It is an amenable number.

838508132 is an abundant number, since it is smaller than the sum of its proper divisors (993285916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

838508132 is a wasteful number, since it uses less digits than its factorization.

838508132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476 (or 3474 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 838508132 is about 28957.0048865555. The cubic root of 838508132 is about 942.9798795968.

The spelling of 838508132 in words is "eight hundred thirty-eight million, five hundred eight thousand, one hundred thirty-two".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 1217 2237 2434 4474 4868 8519 8948 13387 15659 17038 24607 26774 31318 34076 49214 53548 62636 93709 98428 172249 187418 344498 374836 688996 2722429 5444858 10889716 19057003 29946719 38114006 59893438 76228012 119786876 209627033 419254066 838508132