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1230023020020 = 2235231627354773
BaseRepresentation
bin10001111001100011000…
…101011100110111110100
311100120220102022112212220
4101321203011130313310
5130123041343120040
62341021554042340
7154603055106444
oct21714305346764
94316812275786
101230023020020
11434716a23433
1217a4782793b0
138bcb567ca02
1443767a46124
1521ee08602d0
hex11e6315cdf4

1230023020020 has 96 divisors (see below), whose sum is σ = 3594092850432. Its totient is φ = 313719994368.

The previous prime is 1230023020007. The next prime is 1230023020081. The reversal of 1230023020020 is 200203200321.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 22429354 + ... + 22484126.

It is an arithmetic number, because the mean of its divisors is an integer number (37438467192).

Almost surely, 21230023020020 is an apocalyptic number.

1230023020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230023020020 is an abundant number, since it is smaller than the sum of its proper divisors (2364069830412).

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

1230023020020 is a wasteful number, since it uses less digits than its factorization.

1230023020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71081 (or 71079 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 1230023020020 its reverse (200203200321), we get a palindrome (1430226220341).

The spelling of 1230023020020 in words is "one trillion, two hundred thirty billion, twenty-three million, twenty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 138 230 276 345 460 690 1380 16273 32546 48819 54773 65092 81365 97638 109546 162730 164319 195276 219092 244095 273865 325460 328638 374279 488190 547730 657276 748558 821595 976380 1095460 1122837 1259779 1497116 1643190 1871395 2245674 2519558 3286380 3742790 3779337 4491348 5039116 5614185 6298895 7485580 7558674 11228370 12597790 15117348 18896685 22456740 25195580 37793370 75586740 891321029 1782642058 2673963087 3565284116 4456605145 5347926174 8913210290 10695852348 13369815435 17826420580 20500383667 26739630870 41000767334 53479261740 61501151001 82001534668 102501918335 123002302002 205003836670 246004604004 307505755005 410007673340 615011510010 1230023020020