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28302312468 = 2233773218707
BaseRepresentation
bin11010010110111100…
…110000010000010100
32201001102210102220010
4122112330300100110
5430430342444333
621000224440220
72021233454343
oct322674602024
981042712803
1028302312468
1111003a10291
12559a479070
132890748271
141526ba5b5a
15b09a80563
hex696f30414

28302312468 has 48 divisors (see below), whose sum is σ = 67840614464. Its totient is φ = 9176820480.

The previous prime is 28302312397. The next prime is 28302312469. The reversal of 28302312468 is 86421320382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28302312469) 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, 3246171 + ... + 3254877.

Almost surely, 228302312468 is an apocalyptic number.

It is an amenable number.

28302312468 is an abundant number, since it is smaller than the sum of its proper divisors (39538301996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28302312468 is a wasteful number, since it uses less digits than its factorization.

28302312468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16072 (or 16070 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 28302312468 in words is "twenty-eight billion, three hundred two million, three hundred twelve thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 7321 8707 14642 17414 21963 26121 29284 34828 43926 52242 87852 104484 270877 322159 541754 644318 812631 966477 1083508 1288636 1625262 1932954 3250524 3865908 63743947 127487894 191231841 254975788 382463682 764927364 2358526039 4717052078 7075578117 9434104156 14151156234 28302312468