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3838997995 = 57312311367
BaseRepresentation
bin1110010011010010…
…0111010111101011
3100220112202022012221
43210310213113223
530330240413440
61432535014511
7164063641660
oct34464472753
910815668187
103838997995
1116a0018018
128b180a437
1349246cb61
14285c03a67
15177070d4a
hexe4d275eb

3838997995 has 48 divisors (see below), whose sum is σ = 5472589824. Its totient is φ = 2532427200.

The previous prime is 3838997951. The next prime is 3838997999. The reversal of 3838997995 is 5997998383.

It is not a de Polignac number, because 3838997995 - 27 = 3838997867 is a prime.

It is a super-2 number, since 2×38389979952 = 29475811211228040050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3838997999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10460302 + ... + 10460668.

It is an arithmetic number, because the mean of its divisors is an integer number (114012288).

Almost surely, 23838997995 is an apocalyptic number.

3838997995 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3838997995 is a deficient number, since it is larger than the sum of its proper divisors (1633591829).

3838997995 is a wasteful number, since it uses less digits than its factorization.

3838997995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 721 counting only the distinct ones).

The product of its digits is 132269760, while the sum is 70.

The square root of 3838997995 is about 61959.6481187555. The cubic root of 3838997995 is about 1565.8108391691.

The spelling of 3838997995 in words is "three billion, eight hundred thirty-eight million, nine hundred ninety-seven thousand, nine hundred ninety-five".

Divisors: 1 5 7 31 35 155 217 311 367 961 1085 1555 1835 2177 2569 4805 6727 9641 10885 11377 12845 33635 48205 56885 67487 79639 114137 298871 337435 352687 398195 570685 798959 1494355 1763435 2092097 2468809 3538247 3994795 10460485 12344045 17691235 24767729 109685657 123838645 548428285 767799599 3838997995