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38606131 = 43897817
BaseRepresentation
bin1001001101000…
…1010100110011
32200122101122201
42103101110303
534340344011
63455244031
7646101214
oct223212463
980571581
1038606131
111a8793a3
1210b19617
137cc9285
1451ad40b
1535c8cc1
hex24d1533

38606131 has 4 divisors (see below), whose sum is σ = 39503992. Its totient is φ = 37708272.

The previous prime is 38606089. The next prime is 38606147. The reversal of 38606131 is 13160683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13160683 = 25152433.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38606131 is a prime.

It is a super-2 number, since 2×386061312 = 2980866701578322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38606131.

It is not an unprimeable number, because it can be changed into a prime (38606231) 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, 448866 + ... + 448951.

It is an arithmetic number, because the mean of its divisors is an integer number (9875998).

Almost surely, 238606131 is an apocalyptic number.

38606131 is a deficient number, since it is larger than the sum of its proper divisors (897861).

38606131 is an equidigital number, since it uses as much as digits as its factorization.

38606131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897860.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 38606131 is about 6213.3832168956. The cubic root of 38606131 is about 337.9756614479.

The spelling of 38606131 in words is "thirty-eight million, six hundred six thousand, one hundred thirty-one".

Divisors: 1 43 897817 38606131