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23001144304020 = 22351017734910179
BaseRepresentation
bin1010011101011010111110…
…00010010010000110010100
310000102212222021221110010020
411032231133002102012110
511003322320420212040
6120530325124025140
74562530540504221
oct516553702220624
9100385867843106
1023001144304020
117368804359313
1226b59388321b0
13caacc9c071bc
14597393106948
1529d4a4cb2cd0
hex14eb5f092194

23001144304020 has 96 divisors (see below), whose sum is σ = 65125013627520. Its totient is φ = 6065051865600.

The previous prime is 23001144304013. The next prime is 23001144304097. The reversal of 23001144304020 is 2040344110032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2229291 + ... + 7139469.

It is an arithmetic number, because the mean of its divisors is an integer number (678385558620).

Almost surely, 223001144304020 is an apocalyptic number.

23001144304020 is a gapful number since it is divisible by the number (20) 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 23001144304020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32562506813760).

23001144304020 is an abundant number, since it is smaller than the sum of its proper divisors (42123869323500).

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

23001144304020 is a wasteful number, since it uses less digits than its factorization.

23001144304020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4911065 (or 4911063 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 23001144304020 its reverse (2040344110032), we get a palindrome (25041488414052).

The spelling of 23001144304020 in words is "twenty-three trillion, one billion, one hundred forty-four million, three hundred four thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 101 202 303 404 505 606 773 1010 1212 1515 1546 2020 2319 3030 3092 3865 4638 6060 7730 9276 11595 15460 23190 46380 78073 156146 234219 312292 390365 468438 780730 936876 1171095 1561460 2342190 4684380 4910179 9820358 14730537 19640716 24550895 29461074 49101790 58922148 73652685 98203580 147305370 294610740 495928079 991856158 1487784237 1983712316 2479640395 2975568474 3795568367 4959280790 5951136948 7438921185 7591136734 9918561580 11386705101 14877842370 15182273468 18977841835 22773410202 29755684740 37955683670 45546820404 56933525505 75911367340 113867051010 227734102020 383352405067 766704810134 1150057215201 1533409620268 1916762025335 2300114430402 3833524050670 4600228860804 5750286076005 7667048101340 11500572152010 23001144304020