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23000311212980 = 22519612240944279
BaseRepresentation
bin1010011101011001011010…
…11000010010101110110100
310000102210211020100001001112
411032230231120102232310
511003314114132303410
6120530110324014152
74562501103366323
oct516545530225664
9100383736301045
1023000311212980
117368417076722
1226b5745831358
13caabc643941a
145973146060ba
1529d456aa1105
hex14eb2d612bb4

23000311212980 has 96 divisors (see below), whose sum is σ = 51679754784000. Its totient is φ = 8572447503360.

The previous prime is 23000311212979. The next prime is 23000311213001. The reversal of 23000311212980 is 8921211300032.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 519418481 + ... + 519462759.

It is an arithmetic number, because the mean of its divisors is an integer number (538330779000).

Almost surely, 223000311212980 is an apocalyptic number.

23000311212980 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 23000311212980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25839877392000).

23000311212980 is an abundant number, since it is smaller than the sum of its proper divisors (28679443571020).

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

23000311212980 is a wasteful number, since it uses less digits than its factorization.

23000311212980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66777 (or 66775 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 23000311212980 in words is "twenty-three trillion, three hundred eleven million, two hundred twelve thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 61 76 95 122 190 244 305 380 610 1159 1220 2318 4636 5795 11590 22409 23180 44279 44818 88558 89636 112045 177116 221395 224090 425771 442790 448180 841301 851542 885580 1366949 1682602 1703084 2128855 2701019 2733898 3365204 4206505 4257710 5402038 5467796 6834745 8413010 8515420 10804076 13505095 13669490 16826020 25972031 27010190 27338980 51319361 51944062 54020380 102638722 103888124 129860155 205277444 256596805 259720310 513193610 519440620 992248111 1026387220 1984496222 3968992444 4961240555 9922481110 18852714109 19844962220 37705428218 60527134771 75410856436 94263570545 121054269542 188527141090 242108539084 302635673855 377054282180 605271347710 1150015560649 1210542695420 2300031121298 4600062242596 5750077803245 11500155606490 23000311212980