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23630208 = 273759149
BaseRepresentation
bin101101000100…
…1000110000000
31122110112112220
41122021012000
522022131313
62202251040
7404565510
oct132110600
948415486
1023630208
111237a7a8
127ab6a80
134b84894
1431d1840
15211b823
hex1689180

23630208 has 128 divisors (see below), whose sum is σ = 73440000. Its totient is φ = 6592512.

The previous prime is 23630207. The next prime is 23630213. The reversal of 23630208 is 80203632.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23630207) 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, 158518 + ... + 158666.

It is an arithmetic number, because the mean of its divisors is an integer number (573750).

Almost surely, 223630208 is an apocalyptic number.

23630208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23630208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36720000).

23630208 is an abundant number, since it is smaller than the sum of its proper divisors (49809792).

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

23630208 is a wasteful number, since it uses less digits than its factorization.

23630208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23630208 is about 4861.0912355149. The cubic root of 23630208 is about 286.9607606193.

The spelling of 23630208 in words is "twenty-three million, six hundred thirty thousand, two hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 59 64 84 96 112 118 128 149 168 177 192 224 236 298 336 354 384 413 447 448 472 596 672 708 826 894 896 944 1043 1192 1239 1344 1416 1652 1788 1888 2086 2384 2478 2688 2832 3129 3304 3576 3776 4172 4768 4956 5664 6258 6608 7152 7552 8344 8791 9536 9912 11328 12516 13216 14304 16688 17582 19072 19824 22656 25032 26373 26432 28608 33376 35164 39648 50064 52746 52864 57216 61537 66752 70328 79296 100128 105492 123074 133504 140656 158592 184611 200256 210984 246148 281312 369222 400512 421968 492296 562624 738444 843936 984592 1125248 1476888 1687872 1969184 2953776 3375744 3938368 5907552 7876736 11815104 23630208