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38201893 = 156724379
BaseRepresentation
bin1001000110111…
…0101000100101
32122212212010221
42101232220211
534234430033
63442444341
7642465532
oct221565045
978785127
1038201893
111a622714
12109636b1
137bb7292
145105d89
15354912d
hex246ea25

38201893 has 4 divisors (see below), whose sum is σ = 38227840. Its totient is φ = 38175948.

The previous prime is 38201881. The next prime is 38201897. The reversal of 38201893 is 39810283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38201893 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 (38201897) 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, 10623 + ... + 13756.

It is an arithmetic number, because the mean of its divisors is an integer number (9556960).

Almost surely, 238201893 is an apocalyptic number.

It is an amenable number.

38201893 is a deficient number, since it is larger than the sum of its proper divisors (25947).

38201893 is a wasteful number, since it uses less digits than its factorization.

38201893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25946.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 38201893 is about 6180.7679943515. The cubic root of 38201893 is about 336.7918922234.

The spelling of 38201893 in words is "thirty-eight million, two hundred one thousand, eight hundred ninety-three".

Divisors: 1 1567 24379 38201893