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39206972 = 2271400249
BaseRepresentation
bin1001010110010…
…0000000111100
32201202220212002
42111210000330
540014110342
63520201432
7654153020
oct225440074
981686762
1039206972
1120149862
1211169278
1381798bc
1452c8380
153696d32
hex256403c

39206972 has 12 divisors (see below), whose sum is σ = 78414000. Its totient is φ = 16802976.

The previous prime is 39206963. The next prime is 39206983. The reversal of 39206972 is 27960293.

39206972 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700097 + ... + 700152.

It is an arithmetic number, because the mean of its divisors is an integer number (6534500).

Almost surely, 239206972 is an apocalyptic number.

It is an amenable number.

39206972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

39206972 is a wasteful number, since it uses less digits than its factorization.

39206972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400260 (or 1400258 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 39206972 is about 6261.5470931711. The cubic root of 39206972 is about 339.7199886028.

The spelling of 39206972 in words is "thirty-nine million, two hundred six thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 1400249 2800498 5600996 9801743 19603486 39206972