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23830635390 = 2355322965449
BaseRepresentation
bin10110001100011010…
…101010001101111110
32021111210112201010120
4112030122222031332
5342301120313030
614540405115410
71502355026052
oct261432521576
967453481116
1023830635390
11a1198550a1
1247509b8b66
13232a1aa2b3
141220d4dc62
159471d9010
hex58c6aa37e

23830635390 has 64 divisors (see below), whose sum is σ = 58528008000. Its totient is φ = 6207611904.

The previous prime is 23830635359. The next prime is 23830635391. The reversal of 23830635390 is 9353603832.

It is a super-2 number, since 2×238306353902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23830635391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331386 + ... + 396834.

It is an arithmetic number, because the mean of its divisors is an integer number (914500125).

Almost surely, 223830635390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23830635390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29264004000).

23830635390 is an abundant number, since it is smaller than the sum of its proper divisors (34697372610).

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

23830635390 is a wasteful number, since it uses less digits than its factorization.

23830635390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65741.

The product of its (nonzero) digits is 349920, while the sum is 42.

The spelling of 23830635390 in words is "twenty-three billion, eight hundred thirty million, six hundred thirty-five thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 53 106 159 229 265 318 458 530 687 795 1145 1374 1590 2290 3435 6870 12137 24274 36411 60685 65449 72822 121370 130898 182055 196347 327245 364110 392694 654490 981735 1963470 3468797 6937594 10406391 14987821 17343985 20812782 29975642 34687970 44963463 52031955 74939105 89926926 104063910 149878210 224817315 449634630 794354513 1588709026 2383063539 3971772565 4766127078 7943545130 11915317695 23830635390