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1838115132 = 223737957737
BaseRepresentation
bin110110110001111…
…0110100100111100
311202002201220221020
41231203312210330
512231024141012
6502221104140
763356502150
oct15543664474
94662656836
101838115132
11863628117
124336b8050
13233a769b9
14136199060
15ab586a8c
hex6d8f693c

1838115132 has 48 divisors (see below), whose sum is σ = 4914658560. Its totient is φ = 523780992.

The previous prime is 1838115113. The next prime is 1838115133. The reversal of 1838115132 is 2315118381.

It is a junction number, because it is equal to n+sod(n) for n = 1838115093 and 1838115102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838115133) 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, 2968 + ... + 60704.

It is an arithmetic number, because the mean of its divisors is an integer number (102388720).

Almost surely, 21838115132 is an apocalyptic number.

1838115132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1838115132 is an abundant number, since it is smaller than the sum of its proper divisors (3076543428).

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

1838115132 is a wasteful number, since it uses less digits than its factorization.

1838115132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58130 (or 58128 counting only the distinct ones).

The product of its digits is 5760, while the sum is 33.

The square root of 1838115132 is about 42873.2449436709. The cubic root of 1838115132 is about 1224.9665701276.

The spelling of 1838115132 in words is "one billion, eight hundred thirty-eight million, one hundred fifteen thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 379 758 1137 1516 2274 2653 4548 5306 7959 10612 15918 31836 57737 115474 173211 230948 346422 404159 692844 808318 1212477 1616636 2424954 4849908 21882323 43764646 65646969 87529292 131293938 153176261 262587876 306352522 459528783 612705044 919057566 1838115132