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38223689 = 743126989
BaseRepresentation
bin1001000111001…
…1111101001001
32122220222001012
42101303331021
534241124224
63443133305
7642616220
oct221637511
978828035
1038223689
111a638029
1210974235
137bc418a
14510dcb7
15355080e
hex2473f49

38223689 has 8 divisors (see below), whose sum is σ = 44700480. Its totient is φ = 32000976.

The previous prime is 38223683. The next prime is 38223697. The reversal of 38223689 is 98632283.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38223689 - 24 = 38223673 is a prime.

It is a super-2 number, since 2×382236892 = 2922100801537442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38223683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63194 + ... + 63795.

It is an arithmetic number, because the mean of its divisors is an integer number (5587560).

Almost surely, 238223689 is an apocalyptic number.

It is an amenable number.

38223689 is a deficient number, since it is larger than the sum of its proper divisors (6476791).

38223689 is a wasteful number, since it uses less digits than its factorization.

38223689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127039.

The product of its digits is 124416, while the sum is 41.

The square root of 38223689 is about 6182.5309542290. The cubic root of 38223689 is about 336.8559319858.

The spelling of 38223689 in words is "thirty-eight million, two hundred twenty-three thousand, six hundred eighty-nine".

Divisors: 1 7 43 301 126989 888923 5460527 38223689