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38907928214884 = 221812172312
BaseRepresentation
bin10001101100010111101010…
…01111010111110101100100
312002202120011102012021211001
420312023311033113311210
520044431414110334014
6214430015551523044
711124001506036211
oct1066136517276544
9162676142167731
1038907928214884
111144083a171293
12444474a529484
1318930041ba401
14987221d50b08
154771402d6974
hex2362f53d7d64

38907928214884 has 27 divisors (see below), whose sum is σ = 68471108070393. Its totient is φ = 19345360870800.

The previous prime is 38907928214863. The next prime is 38907928214887. The reversal of 38907928214884 is 48841282970983.

The square root of 38907928214884 is 6237622.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 428734229284 + 38479193985600 = 654778^2 + 6203160^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38907928214887) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2258010549 + ... + 2258027779.

Almost surely, 238907928214884 is an apocalyptic number.

38907928214884 is the 6237622-nd square number.

It is an amenable number.

38907928214884 is a deficient number, since it is larger than the sum of its proper divisors (29563179855509).

38907928214884 is an frugal number, since it uses more digits than its factorization.

38907928214884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34828 (or 17414 counting only the distinct ones).

The product of its (nonzero) digits is 445906944, while the sum is 73.

The spelling of 38907928214884 in words is "thirty-eight trillion, nine hundred seven billion, nine hundred twenty-eight million, two hundred fourteen thousand, eight hundred eighty-four".

Divisors: 1 2 4 181 362 724 17231 32761 34462 65522 68924 131044 3118811 6237622 12475244 296907361 564504791 593814722 1129009582 1187629444 2258019164 53740232341 107480464682 214960929364 9726982053721 19453964107442 38907928214884