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38020755 = 3517149101
BaseRepresentation
bin1001000100001…
…0011010010011
32122112122200010
42101002122103
534213131010
63434530003
7641112453
oct221023223
978478603
1038020755
111a509613
1210896903
137b529b6
145099d63
153510620
hex2442693

38020755 has 16 divisors (see below), whose sum is σ = 64412064. Its totient is φ = 19084800.

The previous prime is 38020753. The next prime is 38020781. The reversal of 38020755 is 55702083.

It is a happy number.

It is not a de Polignac number, because 38020755 - 21 = 38020753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38020753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74296 + ... + 74805.

It is an arithmetic number, because the mean of its divisors is an integer number (4025754).

Almost surely, 238020755 is an apocalyptic number.

38020755 is a deficient number, since it is larger than the sum of its proper divisors (26391309).

38020755 is a wasteful number, since it uses less digits than its factorization.

38020755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149126.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 38020755 is about 6166.0972259607. The cubic root of 38020755 is about 336.2587381357.

The spelling of 38020755 in words is "thirty-eight million, twenty thousand, seven hundred fifty-five".

Divisors: 1 3 5 15 17 51 85 255 149101 447303 745505 2236515 2534717 7604151 12673585 38020755