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38001983 = 163233141
BaseRepresentation
bin1001000011110…
…1110100111111
32122111200220212
42100331310333
534212030413
63434303035
7641003645
oct220756477
978450825
1038001983
111a4a64a8
1210887a7b
137b472a6
145093195
153509ca8
hex243dd3f

38001983 has 4 divisors (see below), whose sum is σ = 38235288. Its totient is φ = 37768680.

The previous prime is 38001979. The next prime is 38001989. The reversal of 38001983 is 38910083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38001983 - 22 = 38001979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38001989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116408 + ... + 116733.

It is an arithmetic number, because the mean of its divisors is an integer number (9558822).

Almost surely, 238001983 is an apocalyptic number.

38001983 is a deficient number, since it is larger than the sum of its proper divisors (233305).

38001983 is a wasteful number, since it uses less digits than its factorization.

38001983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233304.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 38001983 is about 6164.5748434097. The cubic root of 38001983 is about 336.2033886459.

The spelling of 38001983 in words is "thirty-eight million, one thousand, nine hundred eighty-three".

Divisors: 1 163 233141 38001983