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38968617 = 312989539
BaseRepresentation
bin1001010010100…
…1110100101001
32201022210220010
42110221310221
534433443432
63511122133
7652141062
oct224516451
981283803
1038968617
111aaa6776
1211073349
1380c526c
145265569
15364b3cc
hex2529d29

38968617 has 4 divisors (see below), whose sum is σ = 51958160. Its totient is φ = 25979076.

The previous prime is 38968613. The next prime is 38968627. The reversal of 38968617 is 71686983.

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 not a de Polignac number, because 38968617 - 22 = 38968613 is a prime.

It is a super-3 number, since 3×389686173 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38968613) 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, 6494767 + ... + 6494772.

It is an arithmetic number, because the mean of its divisors is an integer number (12989540).

Almost surely, 238968617 is an apocalyptic number.

It is an amenable number.

38968617 is a deficient number, since it is larger than the sum of its proper divisors (12989543).

38968617 is a wasteful number, since it uses less digits than its factorization.

38968617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12989542.

The product of its digits is 435456, while the sum is 48.

The square root of 38968617 is about 6242.4848417918. The cubic root of 38968617 is about 339.0301571661.

It can be divided in two parts, 389 and 68617, that added together give a triangular number (69006 = T371).

The spelling of 38968617 in words is "thirty-eight million, nine hundred sixty-eight thousand, six hundred seventeen".

Divisors: 1 3 12989539 38968617