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1930994613 = 33735871669
BaseRepresentation
bin111001100011000…
…1010001110110101
311222120111200122000
41303012022032311
512423313311423
6515335525513
765565116622
oct16306121665
94876450560
101930994613
11900aa5919
1245a829899
1324a096482
14144655349
15b47d1843
hex7318a3b5

1930994613 has 32 divisors (see below), whose sum is σ = 2906601600. Its totient is φ = 1266772608.

The previous prime is 1930994603. The next prime is 1930994629. The reversal of 1930994613 is 3164990391.

1930994613 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1930994613 - 220 = 1929946037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930994603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1156143 + ... + 1157811.

It is an arithmetic number, because the mean of its divisors is an integer number (90831300).

Almost surely, 21930994613 is an apocalyptic number.

It is an amenable number.

1930994613 is a deficient number, since it is larger than the sum of its proper divisors (975606987).

1930994613 is a wasteful number, since it uses less digits than its factorization.

1930994613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338 (or 2332 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 1930994613 is about 43943.0837902849. The cubic root of 1930994613 is about 1245.2609062721.

The spelling of 1930994613 in words is "one billion, nine hundred thirty million, nine hundred ninety-four thousand, six hundred thirteen".

Divisors: 1 3 9 27 73 219 587 657 1669 1761 1971 5007 5283 15021 15849 42851 45063 121837 128553 365511 385659 979703 1096533 1156977 2939109 3289599 8817327 26451981 71518319 214554957 643664871 1930994613