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39700470 = 2351323349
BaseRepresentation
bin1001011101110…
…0011111110110
32202200222210210
42113130133312
540130403340
63534530250
7661306545
oct227343766
982628723
1039700470
1120456607
1211366986
1382c0404
1453b615c
153743180
hex25dc7f6

39700470 has 16 divisors (see below), whose sum is σ = 95281200. Its totient is φ = 10586784.

The previous prime is 39700439. The next prime is 39700487. The reversal of 39700470 is 7400793.

It is a super-2 number, since 2×397004702 = 3152254636441800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1323349 = 39700470 / (3 + 9 + 7 + 0 + 0 + 4 + 7 + 0).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 661645 + ... + 661704.

It is an arithmetic number, because the mean of its divisors is an integer number (5955075).

Almost surely, 239700470 is an apocalyptic number.

39700470 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39700470 is an abundant number, since it is smaller than the sum of its proper divisors (55580730).

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

39700470 is a wasteful number, since it uses less digits than its factorization.

39700470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323359.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 39700470 is about 6300.8308975880. The cubic root of 39700470 is about 341.1394011566.

The spelling of 39700470 in words is "thirty-nine million, seven hundred thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 1323349 2646698 3970047 6616745 7940094 13233490 19850235 39700470