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23019241590 = 23256716722859
BaseRepresentation
bin10101011100000011…
…011100000001110110
32012102020202122002100
4111130003130001312
5334120411212330
614324102122530
71443303216342
oct253403340166
965366678070
1023019241590
119842841a04
124565120446
13222b068317
14118529a622
158ead61060
hex55c0dc076

23019241590 has 96 divisors (see below), whose sum is σ = 61109717760. Its totient is φ = 6010373952.

The previous prime is 23019241577. The next prime is 23019241591. The reversal of 23019241590 is 9514291032.

23019241590 is a `hidden beast` number, since 2 + 30 + 19 + 24 + 1 + 590 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23019241591) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 995581 + ... + 1018439.

It is an arithmetic number, because the mean of its divisors is an integer number (636559560).

Almost surely, 223019241590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23019241590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30554858880).

23019241590 is an abundant number, since it is smaller than the sum of its proper divisors (38090476170).

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

23019241590 is a wasteful number, since it uses less digits than its factorization.

23019241590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23106 (or 23103 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 23019241590 in words is "twenty-three billion, nineteen million, two hundred forty-one thousand, five hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 67 90 134 167 201 334 335 402 501 603 670 835 1002 1005 1206 1503 1670 2010 2505 3006 3015 5010 6030 7515 11189 15030 22378 22859 33567 45718 55945 67134 68577 100701 111890 114295 137154 167835 201402 205731 228590 335670 342885 411462 503505 685770 1007010 1028655 1531553 2057310 3063106 3817453 4594659 7634906 7657765 9189318 11452359 13783977 15315530 19087265 22904718 22973295 27567954 34357077 38174530 45946590 57261795 68714154 68919885 114523590 137839770 171785385 255769351 343570770 511538702 767308053 1278846755 1534616106 2301924159 2557693510 3836540265 4603848318 7673080530 11509620795 23019241590