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23431215075400 = 23521117476096481
BaseRepresentation
bin1010101001111100000010…
…10000000101000001001000
310001222000001122222021120101
411110332001100011001020
511032344112024403100
6121500052425135144
74635564231652516
oct524760120050110
9101860048867511
1023431215075400
117514139072290
12276516262a4b4
13100c728489292
145b0110c974b6
152a977661486a
hex154f81405048

23431215075400 has 96 divisors (see below), whose sum is σ = 59464109990880. Its totient is φ = 8515563264000.

The previous prime is 23431215075361. The next prime is 23431215075419. The reversal of 23431215075400 is 457051213432.

It is a self number, because there is not a number n which added to its sum of digits gives 23431215075400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 795160 + ... + 6891640.

It is an arithmetic number, because the mean of its divisors is an integer number (619417812405).

Almost surely, 223431215075400 is an apocalyptic number.

23431215075400 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 23431215075400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29732054995440).

23431215075400 is an abundant number, since it is smaller than the sum of its proper divisors (36032894915480).

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

23431215075400 is a wasteful number, since it uses less digits than its factorization.

23431215075400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6098255 (or 6098246 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

Adding to 23431215075400 its reverse (457051213432), we get a palindrome (23888266288832).

The spelling of 23431215075400 in words is "twenty-three trillion, four hundred thirty-one billion, two hundred fifteen million, seventy-five thousand, four hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 200 220 275 440 550 1100 1747 2200 3494 6988 8735 13976 17470 19217 34940 38434 43675 69880 76868 87350 96085 153736 174700 192170 349400 384340 480425 768680 960850 1921700 3843400 6096481 12192962 24385924 30482405 48771848 60964810 67061291 121929620 134122582 152412025 243859240 268245164 304824050 335306455 536490328 609648100 670612910 1219296200 1341225820 1676532275 2682451640 3353064550 6706129100 10650552307 13412258200 21301104614 42602209228 53252761535 85204418456 106505523070 117156075377 213011046140 234312150754 266263807675 426022092280 468624301508 532527615350 585780376885 937248603016 1065055230700 1171560753770 2130110461400 2343121507540 2928901884425 4686243015080 5857803768850 11715607537700 23431215075400