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38508961 = 172227587
BaseRepresentation
bin1001001011100…
…1100110100001
32200110110100211
42102321212201
534324241321
63453214121
7645215011
oct222714641
980413324
1038508961
111a812397
1210a91341
137c93c8a
145185c41
1535aa0e1
hex24b99a1

38508961 has 12 divisors (see below), whose sum is σ = 41157648. Its totient is φ = 36022592.

The previous prime is 38508959. The next prime is 38508973. The reversal of 38508961 is 16980583.

It is a happy number.

It is not a de Polignac number, because 38508961 - 21 = 38508959 is a prime.

It is a super-4 number, since 4×385089614 (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38508941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65310 + ... + 65896.

It is an arithmetic number, because the mean of its divisors is an integer number (3429804).

Almost surely, 238508961 is an apocalyptic number.

It is an amenable number.

38508961 is a deficient number, since it is larger than the sum of its proper divisors (2648687).

38508961 is a wasteful number, since it uses less digits than its factorization.

38508961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 38508961 is about 6205.5588789407. The cubic root of 38508961 is about 337.6918663962.

The spelling of 38508961 in words is "thirty-eight million, five hundred eight thousand, nine hundred sixty-one".

Divisors: 1 17 227 289 587 3859 9979 65603 133249 169643 2265233 38508961