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38098213 = 154324691
BaseRepresentation
bin1001000101010…
…1010100100101
32122200120220221
42101111110211
534223120323
63440324341
7641554336
oct221252445
978616827
1038098213
111a56182a
12109136b1
137b7c02a
1450ba28d
15352855d
hex2455525

38098213 has 4 divisors (see below), whose sum is σ = 38124448. Its totient is φ = 38071980.

The previous prime is 38098133. The next prime is 38098253. The reversal of 38098213 is 31289083.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31289083 = 74469869.

It is a cyclic number.

It is not a de Polignac number, because 38098213 - 29 = 38097701 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 (38098253) 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, 10803 + ... + 13888.

It is an arithmetic number, because the mean of its divisors is an integer number (9531112).

Almost surely, 238098213 is an apocalyptic number.

It is an amenable number.

38098213 is a deficient number, since it is larger than the sum of its proper divisors (26235).

38098213 is a wasteful number, since it uses less digits than its factorization.

38098213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26234.

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

The square root of 38098213 is about 6172.3749886085. The cubic root of 38098213 is about 336.4869315871.

The spelling of 38098213 in words is "thirty-eight million, ninety-eight thousand, two hundred thirteen".

Divisors: 1 1543 24691 38098213