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28930440333 = 333137977673
BaseRepresentation
bin11010111100011000…
…110111110010001101
32202200012201122100010
4122330120313302031
5433222143042313
621142423423433
72042631454044
oct327430676215
982605648303
1028930440333
11112a6530023
1257348b4b79
132960911962
14158639155b
15b44ca74c3
hex6bc637c8d

28930440333 has 16 divisors (see below), whose sum is σ = 38705691456. Its totient is φ = 19221121920.

The previous prime is 28930440323. The next prime is 28930440379. The reversal of 28930440333 is 33304403982.

It is not a de Polignac number, because 28930440333 - 212 = 28930436237 is a prime.

It is a super-2 number, since 2×289304403332 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28930440291 and 28930440300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28930440323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3766585 + ... + 3774257.

It is an arithmetic number, because the mean of its divisors is an integer number (2419105716).

Almost surely, 228930440333 is an apocalyptic number.

It is an amenable number.

28930440333 is a deficient number, since it is larger than the sum of its proper divisors (9775251123).

28930440333 is a wasteful number, since it uses less digits than its factorization.

28930440333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11804.

The product of its (nonzero) digits is 186624, while the sum is 39.

The spelling of 28930440333 in words is "twenty-eight billion, nine hundred thirty million, four hundred forty thousand, three hundred thirty-three".

Divisors: 1 3 331 993 3797 7673 11391 23019 1256807 2539763 3770421 7619289 29134381 87403143 9643480111 28930440333