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2538901388 = 2221111532609
BaseRepresentation
bin1001011101010100…
…1000111110001100
320112221101112221202
42113111020332030
520144424321023
61055533245032
7116626206602
oct22725107614
96487345852
102538901388
111093164211
125aa333778
13315cccc1a
141a1299872
15ecd62128
hex97548f8c

2538901388 has 24 divisors (see below), whose sum is σ = 4469718960. Its totient is φ = 1261854720.

The previous prime is 2538901381. The next prime is 2538901403. The reversal of 2538901388 is 8831098352.

2538901388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2538901381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971828 + ... + 974436.

It is an arithmetic number, because the mean of its divisors is an integer number (186238290).

Almost surely, 22538901388 is an apocalyptic number.

It is an amenable number.

2538901388 is a deficient number, since it is larger than the sum of its proper divisors (1930817572).

2538901388 is a wasteful number, since it uses less digits than its factorization.

2538901388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977 (or 3975 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 2538901388 is about 50387.5122227720. The cubic root of 2538901388 is about 1364.2122479971.

The spelling of 2538901388 in words is "two billion, five hundred thirty-eight million, nine hundred one thousand, three hundred eighty-eight".

Divisors: 1 2 4 211 422 844 1153 2306 2609 4612 5218 10436 243283 486566 550499 973132 1100998 2201996 3008177 6016354 12032708 634725347 1269450694 2538901388