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4231979493 = 37614577229
BaseRepresentation
bin1111110000111110…
…1110000111100101
3101220221012211111020
43330033232013211
532131341320433
61535534001353
7206605142430
oct37417560745
911827184436
104231979493
111881929915
129a1346259
135259c49a1
142c209c817
1519b7e9cb3
hexfc3ee1e5

4231979493 has 32 divisors (see below), whose sum is σ = 6569698560. Its totient is φ = 2373096960.

The previous prime is 4231979467. The next prime is 4231979513. The reversal of 4231979493 is 3949791324.

It is not a de Polignac number, because 4231979493 - 26 = 4231979429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231971493) 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, 581803 + ... + 589031.

It is an arithmetic number, because the mean of its divisors is an integer number (205303080).

Almost surely, 24231979493 is an apocalyptic number.

It is an amenable number.

4231979493 is a deficient number, since it is larger than the sum of its proper divisors (2337719067).

4231979493 is a wasteful number, since it uses less digits than its factorization.

4231979493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7757.

The product of its digits is 1469664, while the sum is 51.

The square root of 4231979493 is about 65053.6662533327. Note that the first 3 decimals coincide. The cubic root of 4231979493 is about 1617.5132671485.

The spelling of 4231979493 in words is "four billion, two hundred thirty-one million, nine hundred seventy-nine thousand, four hundred ninety-three".

Divisors: 1 3 7 21 61 183 427 457 1281 1371 3199 7229 9597 21687 27877 50603 83631 151809 195139 440969 585417 1322907 3086783 3303653 9260349 9910959 23125571 69376713 201522833 604568499 1410659831 4231979493