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39350020 = 2251967501
BaseRepresentation
bin1001011000011…
…0111100000100
32202001012002011
42112012330010
540033200040
63523224004
7655320043
oct226067404
982035064
1039350020
1120237286
1211218004
1381c9a48
14532455a
1536c43ea
hex2586f04

39350020 has 12 divisors (see below), whose sum is σ = 82635084. Its totient is φ = 15740000.

The previous prime is 39349967. The next prime is 39350027. The reversal of 39350020 is 2005393.

It can be written as a sum of positive squares in 2 ways, for example, as 23794884 + 15555136 = 4878^2 + 3944^2 .

It is a junction number, because it is equal to n+sod(n) for n = 39349973 and 39350000.

It is not an unprimeable number, because it can be changed into a prime (39350027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983731 + ... + 983770.

It is an arithmetic number, because the mean of its divisors is an integer number (6886257).

Almost surely, 239350020 is an apocalyptic number.

It is an amenable number.

39350020 is an abundant number, since it is smaller than the sum of its proper divisors (43285064).

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

39350020 is a wasteful number, since it uses less digits than its factorization.

39350020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967510 (or 1967508 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 39350020 is about 6272.9594291690. The cubic root of 39350020 is about 340.1326472044.

The spelling of 39350020 in words is "thirty-nine million, three hundred fifty thousand, twenty".

Divisors: 1 2 4 5 10 20 1967501 3935002 7870004 9837505 19675010 39350020