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10231200011220 = 22357691931114833
BaseRepresentation
bin1001010011100010001100…
…0010101101001111010100
31100020002111220211201121220
42110320203002231033110
52320111444200324340
633432052015410340
72104115450123166
oct224704302551724
940202456751556
1010231200011220
113295033752461
121192a602239b0
13592a4b3390a6
1427529ab8c936
1512b20c52eed0
hex94e230ad3d4

10231200011220 has 96 divisors (see below), whose sum is σ = 28699717495680. Its totient is φ = 2723337338880.

The previous prime is 10231200011213. The next prime is 10231200011309. The reversal of 10231200011220 is 2211000213201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 10231200011220.

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, 89038924 + ... + 89153756.

It is an arithmetic number, because the mean of its divisors is an integer number (298955390580).

Almost surely, 210231200011220 is an apocalyptic number.

10231200011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10231200011220 is an abundant number, since it is smaller than the sum of its proper divisors (18468517484460).

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

10231200011220 is a wasteful number, since it uses less digits than its factorization.

10231200011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117545 (or 117543 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10231200011220 its reverse (2211000213201), we get a palindrome (12442200224421).

The spelling of 10231200011220 in words is "ten trillion, two hundred thirty-one billion, two hundred million, eleven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 769 1538 1931 2307 3076 3845 3862 4614 5793 7690 7724 9228 9655 11535 11586 15380 19310 23070 23172 28965 38620 46140 57930 114833 115860 229666 344499 459332 574165 688998 1148330 1377996 1484939 1722495 2296660 2969878 3444990 4454817 5939756 6889980 7424695 8909634 14849390 17819268 22274085 29698780 44548170 88306577 89096340 176613154 221742523 264919731 353226308 441532885 443485046 529839462 665227569 883065770 886970092 1059678924 1108712615 1324598655 1330455138 1766131540 2217425230 2649197310 2660910276 3326137845 4434850460 5298394620 6652275690 13304551380 170520000187 341040000374 511560000561 682080000748 852600000935 1023120001122 1705200001870 2046240002244 2557800002805 3410400003740 5115600005610 10231200011220