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231500114120 = 23511737207351
BaseRepresentation
bin1101011110011001111…
…0110110100011001000
3211010112122022021120202
43113212132312203020
512243103012122440
6254203310511332
722503534334262
oct3274636664310
9733478267522
10231500114120
118a1a6863170
1238a48b05548
1318aa4416462
14b2c185cb32
15604db1b615
hex35e67b68c8

231500114120 has 64 divisors (see below), whose sum is σ = 576011571840. Its totient is φ = 83028672000.

The previous prime is 231500114113. The next prime is 231500114143. The reversal of 231500114120 is 21411005132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 231500114092 and 231500114101.

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, 3571556 + ... + 3635795.

It is an arithmetic number, because the mean of its divisors is an integer number (9000180810).

Almost surely, 2231500114120 is an apocalyptic number.

231500114120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231500114120 is an abundant number, since it is smaller than the sum of its proper divisors (344511457720).

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

231500114120 is a wasteful number, since it uses less digits than its factorization.

231500114120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7207446 (or 7207442 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 231500114120 its reverse (21411005132), we get a palindrome (252911119252).

The spelling of 231500114120 in words is "two hundred thirty-one billion, five hundred million, one hundred fourteen thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 73 88 110 146 220 292 365 440 584 730 803 1460 1606 2920 3212 4015 6424 8030 16060 32120 7207351 14414702 28829404 36036755 57658808 72073510 79280861 144147020 158561722 288294040 317123444 396404305 526136623 634246888 792808610 1052273246 1585617220 2104546492 2630683115 3171234440 4209092984 5261366230 5787502853 10522732460 11575005706 21045464920 23150011412 28937514265 46300022824 57875028530 115750057060 231500114120