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28417662948 = 22329257317743
BaseRepresentation
bin11010011101110100…
…110001111111100100
32201100110211212000010
4122131310301333210
5431144410203243
621015505050220
72024134102203
oct323564617744
981313755003
1028417662948
1111063036864
125611026970
1328ab604a9c
14153823123a
15b14c68433
hex69dd31fe4

28417662948 has 48 divisors (see below), whose sum is σ = 68861479680. Its totient is φ = 9110298624.

The previous prime is 28417662929. The next prime is 28417662979. The reversal of 28417662948 is 84926671482.

It is a super-2 number, since 2×284176629482 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69436 + ... + 248307.

It is an arithmetic number, because the mean of its divisors is an integer number (1434614160).

Almost surely, 228417662948 is an apocalyptic number.

It is an amenable number.

28417662948 is an abundant number, since it is smaller than the sum of its proper divisors (40443816732).

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

28417662948 is a wasteful number, since it uses less digits than its factorization.

28417662948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318036 (or 318034 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 57.

The spelling of 28417662948 in words is "twenty-eight billion, four hundred seventeen million, six hundred sixty-two thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 257 348 514 771 1028 1542 3084 7453 14906 22359 29812 44718 89436 317743 635486 953229 1270972 1906458 3812916 9214547 18429094 27643641 36858188 55287282 81659951 110574564 163319902 244979853 326639804 489959706 979919412 2368138579 4736277158 7104415737 9472554316 14208831474 28417662948