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22123030240 = 2551723353629
BaseRepresentation
bin10100100110101000…
…101010011011100000
32010002210101101020101
4110212220222123200
5330301443431430
614055125152144
71412141440303
oct244650523340
963083341211
1022123030240
119422968073
124354b5b654
13211749a24c
1410dc248b3a
15897331dca
hex526a2a6e0

22123030240 has 96 divisors (see below), whose sum is σ = 57746364480. Its totient is φ = 7966531584.

The previous prime is 22123030211. The next prime is 22123030253. The reversal of 22123030240 is 4203032122.

It is a congruent number.

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, 114255 + ... + 239374.

It is an arithmetic number, because the mean of its divisors is an integer number (601524630).

Almost surely, 222123030240 is an apocalyptic number.

22123030240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22123030240 is an abundant number, since it is smaller than the sum of its proper divisors (35623334240).

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

22123030240 is a wasteful number, since it uses less digits than its factorization.

22123030240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353684 (or 353676 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 22123030240 its reverse (4203032122), we get a palindrome (26326062362).

The spelling of 22123030240 in words is "twenty-two billion, one hundred twenty-three million, thirty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 17 20 23 32 34 40 46 68 80 85 92 115 136 160 170 184 230 272 340 368 391 460 544 680 736 782 920 1360 1564 1840 1955 2720 3128 3680 3910 6256 7820 12512 15640 31280 62560 353629 707258 1414516 1768145 2829032 3536290 5658064 6011693 7072580 8133467 11316128 12023386 14145160 16266934 24046772 28290320 30058465 32533868 40667335 48093544 56580640 60116930 65067736 81334670 96187088 120233860 130135472 138268939 162669340 192374176 240467720 260270944 276537878 325338680 480935440 553075756 650677360 691344695 961870880 1106151512 1301354720 1382689390 2212303024 2765378780 4424606048 5530757560 11061515120 22123030240