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1230010313220 = 2232513525645433
BaseRepresentation
bin10001111001100010010…
…100111110101000000100
311100120212112101222102200
4101321202110332220010
5130123030120010340
62341020421434500
7154602542104413
oct21714224765004
94316775358380
101230010313220
1143470a834647
1217a473b6ba30
138bcb2b510b0
144376609947a
1521ede6a0330
hex11e6253ea04

1230010313220 has 72 divisors (see below), whose sum is σ = 4018033697496. Its totient is φ = 302771768832.

The previous prime is 1230010313219. The next prime is 1230010313243. The reversal of 1230010313220 is 223130100321.

1230010313220 is a `hidden beast` number, since 1 + 2 + 300 + 10 + 31 + 322 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 182597254596 + 1047413058624 = 427314^2 + 1023432^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1230010313193 and 1230010313202.

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, 262820377 + ... + 262825056.

Almost surely, 21230010313220 is an apocalyptic number.

1230010313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230010313220 is an abundant number, since it is smaller than the sum of its proper divisors (2788023384276).

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

1230010313220 is a wasteful number, since it uses less digits than its factorization.

1230010313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525645461 (or 525645456 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1230010313220 its reverse (223130100321), we get a palindrome (1453140413541).

The spelling of 1230010313220 in words is "one trillion, two hundred thirty billion, ten million, three hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 525645433 1051290866 1576936299 2102581732 2628227165 3153872598 4730808897 5256454330 6307745196 6833390629 7884681495 9461617794 10512908660 13666781258 15769362990 18923235588 20500171887 23654044485 27333562516 31538725980 34166953145 41000343774 47308088970 61500515661 68333906290 82000687548 94616177940 102500859435 123001031322 136667812580 205001718870 246002062644 307502578305 410003437740 615005156610 1230010313220