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39379144 = 2373113127
BaseRepresentation
bin1001011000111…
…0000011001000
32202002200000211
42112032003020
540040113034
63524010504
7655501000
oct226160310
982080024
1039379144
1120257152
1211230a34
13820a08c
145331000
1536ccd64
hex258e0c8

39379144 has 64 divisors (see below), whose sum is σ = 87552000. Its totient is φ = 16595712.

The previous prime is 39379121. The next prime is 39379189. The reversal of 39379144 is 44197393.

It is a happy number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 39379097 and 39379106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310009 + ... + 310135.

It is an arithmetic number, because the mean of its divisors is an integer number (1368000).

Almost surely, 239379144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39379144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43776000).

39379144 is an abundant number, since it is smaller than the sum of its proper divisors (48172856).

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

39379144 is a wasteful number, since it uses less digits than its factorization.

39379144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 249 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 39379144 is about 6275.2803921419. The cubic root of 39379144 is about 340.2165402606.

The spelling of 39379144 in words is "thirty-nine million, three hundred seventy-nine thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 28 49 56 98 113 127 196 226 254 343 392 452 508 686 791 889 904 1016 1372 1582 1778 2744 3164 3556 5537 6223 6328 7112 11074 12446 14351 22148 24892 28702 38759 43561 44296 49784 57404 77518 87122 100457 114808 155036 174244 200914 310072 348488 401828 703199 803656 1406398 2812796 4922393 5625592 9844786 19689572 39379144