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39483940 = 225531932
BaseRepresentation
bin1001011010011…
…1101000100100
32202021222210011
42112213220210
540101441230
63530140004
7656415346
oct226475044
982258704
1039483940
1120318961
1211281604
1382459a2
14535b296
1536ede2a
hex25a7a24

39483940 has 36 divisors (see below), whose sum is σ = 84920724. Its totient is φ = 15415296.

The previous prime is 39483937. The next prime is 39483949. The reversal of 39483940 is 4938493.

39483940 = T408 + T409 + ... + T672.

It can be written as a sum of positive squares in 6 ways, for example, as 2005056 + 37478884 = 1416^2 + 6122^2 .

It is a junction number, because it is equal to n+sod(n) for n = 39483893 and 39483902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39483949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204484 + ... + 204676.

It is an arithmetic number, because the mean of its divisors is an integer number (2358909).

Almost surely, 239483940 is an apocalyptic number.

It is an amenable number.

39483940 is an abundant number, since it is smaller than the sum of its proper divisors (45436784).

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

39483940 is a wasteful number, since it uses less digits than its factorization.

39483940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 39483940 is about 6283.6247500945. The cubic root of 39483940 is about 340.5180683341.

The spelling of 39483940 in words is "thirty-nine million, four hundred eighty-three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 53 106 193 212 265 386 530 772 965 1060 1930 3860 10229 20458 37249 40916 51145 74498 102290 148996 186245 204580 372490 744980 1974197 3948394 7896788 9870985 19741970 39483940