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3127381929 = 327226632
BaseRepresentation
bin1011101001101000…
…0000111110101001
322001221201110111100
42322122000332221
522401102210204
61234154352013
7140333210400
oct27232007651
98057643440
103127381929
111365364371
1273342b609
133aabc4469
142194c4637
15134856a39
hexba680fa9

3127381929 has 27 divisors (see below), whose sum is σ = 5256826653. Its totient is φ = 1786404312.

The previous prime is 3127381891. The next prime is 3127381937. The reversal of 3127381929 is 9291837213.

The square root of 3127381929 is 55923.

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

3127381929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3127381929 - 29 = 3127381417 is a prime.

It is a super-2 number, since 2×31273819292 = 19561035459671522082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3127380929) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1173052 + ... + 1175714.

Almost surely, 23127381929 is an apocalyptic number.

3127381929 is the 55923-rd square number.

3127381929 is the 27962-nd centered octagonal number.

It is an amenable number.

3127381929 is a deficient number, since it is larger than the sum of its proper divisors (2129444724).

3127381929 is an frugal number, since it uses more digits than its factorization.

3127381929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346 (or 2673 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The cubic root of 3127381929 is about 1462.3802309108.

The spelling of 3127381929 in words is "three billion, one hundred twenty-seven million, three hundred eighty-one thousand, nine hundred twenty-nine".

Divisors: 1 3 7 9 21 49 63 147 441 2663 7989 18641 23967 55923 130487 167769 391461 1174383 7091569 21274707 49640983 63824121 148922949 347486881 446768847 1042460643 3127381929