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38986442 = 21121961139
BaseRepresentation
bin1001010010111…
…0001011001010
32201100201100022
42110232023022
534440031232
63511340442
7652244045
oct224561312
981321308
1038986442
1120009100
1211081722
138100401
14526bc5c
153651812
hex252e2ca

38986442 has 48 divisors (see below), whose sum is σ = 69266400. Its totient is φ = 16394400.

The previous prime is 38986417. The next prime is 38986459. The reversal of 38986442 is 24468983.

It is a junction number, because it is equal to n+sod(n) for n = 38986393 and 38986402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280409 + ... + 280547.

It is an arithmetic number, because the mean of its divisors is an integer number (1443050).

Almost surely, 238986442 is an apocalyptic number.

38986442 is a deficient number, since it is larger than the sum of its proper divisors (30279958).

38986442 is a wasteful number, since it uses less digits than its factorization.

38986442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 232 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 38986442 is about 6243.9123952855. The cubic root of 38986442 is about 339.0818422726.

The spelling of 38986442 in words is "thirty-eight million, nine hundred eighty-six thousand, four hundred forty-two".

Divisors: 1 2 11 19 22 38 61 121 122 139 209 242 278 418 671 1159 1342 1529 2299 2318 2641 3058 4598 5282 7381 8479 12749 14762 16819 16958 25498 29051 33638 58102 93269 140239 161101 186538 280478 319561 322202 639122 1025959 1772111 2051918 3544222 19493221 38986442