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38869146 = 234239933
BaseRepresentation
bin1001010001000…
…1100010011010
32201010202110000
42110101202122
534422303041
63505033430
7651245061
oct224214232
981122400
1038869146
111aa38a68
1211025876
13808bbc4
14523b1d8
15362bbb6
hex251189a

38869146 has 20 divisors (see below), whose sum is σ = 87096042. Its totient is φ = 12956328.

The previous prime is 38869109. The next prime is 38869169. The reversal of 38869146 is 64196883.

It can be written as a sum of positive squares in only one way, i.e., 27720225 + 11148921 = 5265^2 + 3339^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 119805 + ... + 120128.

Almost surely, 238869146 is an apocalyptic number.

38869146 is an abundant number, since it is smaller than the sum of its proper divisors (48226896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38869146 is a wasteful number, since it uses less digits than its factorization.

38869146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239947 (or 239938 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 38869146 is about 6234.5124909651. The cubic root of 38869146 is about 338.7414427562.

The spelling of 38869146 in words is "thirty-eight million, eight hundred sixty-nine thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 27 54 81 162 239933 479866 719799 1439598 2159397 4318794 6478191 12956382 19434573 38869146