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2031300120420 = 2232523490652203
BaseRepresentation
bin11101100011110010111…
…011000000111101100100
321012012010210112201021100
4131203302323000331210
5231240100312323140
64153055535120100
7266520340065324
oct35436273007544
97165123481240
102031300120420
11713518a645aa
1228981a373030
131197210a719c
147045b84b284
1537c8ad1c530
hex1d8f2ec0f64

2031300120420 has 72 divisors (see below), whose sum is σ = 6429506481216. Its totient is φ = 518128725312.

The previous prime is 2031300120413. The next prime is 2031300120449. The reversal of 2031300120420 is 240210031302.

2031300120420 is a `hidden beast` number, since 203 + 1 + 30 + 0 + 12 + 0 + 420 = 666.

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 = 2031300120393 and 2031300120402.

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, 245321962 + ... + 245330241.

It is an arithmetic number, because the mean of its divisors is an integer number (89298701128).

Almost surely, 22031300120420 is an apocalyptic number.

2031300120420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031300120420 is an abundant number, since it is smaller than the sum of its proper divisors (4398206360796).

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

2031300120420 is a wasteful number, since it uses less digits than its factorization.

2031300120420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490652241 (or 490652236 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2031300120420 its reverse (240210031302), we get a palindrome (2271510151722).

The spelling of 2031300120420 in words is "two trillion, thirty-one billion, three hundred million, one hundred twenty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 23 30 36 45 46 60 69 90 92 115 138 180 207 230 276 345 414 460 690 828 1035 1380 2070 4140 490652203 981304406 1471956609 1962608812 2453261015 2943913218 4415869827 4906522030 5887826436 7359783045 8831739654 9813044060 11285000669 14719566090 17663479308 22079349135 22570001338 29439132180 33855002007 44158698270 45140002676 56425003345 67710004014 88317396540 101565006021 112850006690 135420008028 169275010035 203130012042 225700013380 338550020070 406260024084 507825030105 677100040140 1015650060210 2031300120420