Search a number
-
+
28096497471 = 377319195957
BaseRepresentation
bin11010001010101011…
…101000011100111111
32200112002111221210110
4122022223220130333
5430020200404341
620523553241103
72013154200540
oct321253503477
980462457713
1028096497471
1110a08816449
125541563193
132859c06243
14150770c4c7
15ae6978216
hex68aae873f

28096497471 has 32 divisors (see below), whose sum is σ = 43627880448. Its totient is φ = 15752136960.

The previous prime is 28096497469. The next prime is 28096497479. The reversal of 28096497471 is 17479469082.

It is a happy number.

It is not a de Polignac number, because 28096497471 - 21 = 28096497469 is a prime.

It is a super-3 number, since 3×280964974713 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28096497479) 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, 244825 + ... + 340781.

It is an arithmetic number, because the mean of its divisors is an integer number (1363371264).

Almost surely, 228096497471 is an apocalyptic number.

28096497471 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28096497471 is a deficient number, since it is larger than the sum of its proper divisors (15531382977).

28096497471 is a wasteful number, since it uses less digits than its factorization.

28096497471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96231.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 28096497471 in words is "twenty-eight billion, ninety-six million, four hundred ninety-seven thousand, four hundred seventy-one".

Divisors: 1 3 7 21 73 191 219 511 573 1337 1533 4011 13943 41829 95957 97601 287871 292803 671699 2015097 7004861 18327787 21014583 49034027 54983361 128294509 147102081 384883527 1337928451 4013785353 9365499157 28096497471