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38612680 = 235965317
BaseRepresentation
bin1001001101001…
…0111011001000
32200122201122021
42103102323020
534341101210
63455334224
7646126261
oct223227310
980581567
1038612680
111a883307
1210b21374
137ccc252
1451b1968
1535cabda
hex24d2ec8

38612680 has 16 divisors (see below), whose sum is σ = 86878620. Its totient is φ = 15445056.

The previous prime is 38612657. The next prime is 38612681. The reversal of 38612680 is 8621683.

It can be written as a sum of positive squares in 2 ways, for example, as 37234404 + 1378276 = 6102^2 + 1174^2 .

It is not an unprimeable number, because it can be changed into a prime (38612681) 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, 482619 + ... + 482698.

Almost surely, 238612680 is an apocalyptic number.

It is an amenable number.

38612680 is an abundant number, since it is smaller than the sum of its proper divisors (48265940).

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

38612680 is a wasteful number, since it uses less digits than its factorization.

38612680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965328 (or 965324 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 38612680 is about 6213.9102021191. The cubic root of 38612680 is about 337.9947713440.

The spelling of 38612680 in words is "thirty-eight million, six hundred twelve thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 965317 1930634 3861268 4826585 7722536 9653170 19306340 38612680