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1938529372 = 2213213272161
BaseRepresentation
bin111001110001011…
…1001110001011100
312000002200111101011
41303202321301130
512432230414442
6520205225004
766016141063
oct16342716134
95002614334
101938529372
1190528189a
12461262164
1324b803c00
141456571da
15b52be117
hex738b9c5c

1938529372 has 36 divisors (see below), whose sum is σ = 3677925216. Its totient is φ = 893617920.

The previous prime is 1938529349. The next prime is 1938529387. The reversal of 1938529372 is 2739258391.

1938529372 is nontrivially palindromic in base 12.

It is a super-2 number, since 2×19385293722 = 7515792252213428768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 895972 + ... + 898132.

Almost surely, 21938529372 is an apocalyptic number.

It is an amenable number.

1938529372 is a deficient number, since it is larger than the sum of its proper divisors (1739395844).

1938529372 is a wasteful number, since it uses less digits than its factorization.

1938529372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518 (or 3503 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The square root of 1938529372 is about 44028.7334816708. The cubic root of 1938529372 is about 1246.8784773927.

The spelling of 1938529372 in words is "one billion, nine hundred thirty-eight million, five hundred twenty-nine thousand, three hundred seventy-two".

Divisors: 1 2 4 13 26 52 169 338 676 1327 2161 2654 4322 5308 8644 17251 28093 34502 56186 69004 112372 224263 365209 448526 730418 897052 1460836 2867647 5735294 11470588 37279411 74558822 149117644 484632343 969264686 1938529372