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38012897 = 132924069
BaseRepresentation
bin1001000100000…
…0011111100001
32122112020220002
42101000133201
534212403042
63434425345
7641050526
oct221003741
978466802
1038012897
111a50371a
1210892255
137b4c250
14509714d
15350d132
hex24407e1

38012897 has 4 divisors (see below), whose sum is σ = 40936980. Its totient is φ = 35088816.

The previous prime is 38012893. The next prime is 38012957. The reversal of 38012897 is 79821083.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13845841 + 24167056 = 3721^2 + 4916^2 .

It is a cyclic number.

It is not a de Polignac number, because 38012897 - 22 = 38012893 is a prime.

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 38012897.

It is not an unprimeable number, because it can be changed into a prime (38012893) 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, 1462022 + ... + 1462047.

It is an arithmetic number, because the mean of its divisors is an integer number (10234245).

Almost surely, 238012897 is an apocalyptic number.

It is an amenable number.

38012897 is a deficient number, since it is larger than the sum of its proper divisors (2924083).

38012897 is a wasteful number, since it uses less digits than its factorization.

38012897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924082.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 38012897 is about 6165.4599990593. The cubic root of 38012897 is about 336.2355709364.

The spelling of 38012897 in words is "thirty-eight million, twelve thousand, eight hundred ninety-seven".

Divisors: 1 13 2924069 38012897