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20453410120 = 23511133575771
BaseRepresentation
bin10011000011000111…
…100100010101001000
31221210102200220000011
4103003013210111020
5313342033110440
613221323321304
71322566055203
oct230307442510
957712626004
1020453410120
118746464830
123b69980234
131c0c5c9850
14dc05d093a
157ea97e9ea
hex4c31e4548

20453410120 has 64 divisors (see below), whose sum is σ = 54065672640. Its totient is φ = 6865478400.

The previous prime is 20453410069. The next prime is 20453410139. The reversal of 20453410120 is 2101435402.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 20453410091 and 20453410100.

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, 1782166 + ... + 1793605.

It is an arithmetic number, because the mean of its divisors is an integer number (844776135).

Almost surely, 220453410120 is an apocalyptic number.

20453410120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20453410120 is an abundant number, since it is smaller than the sum of its proper divisors (33612262520).

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

20453410120 is a wasteful number, since it uses less digits than its factorization.

20453410120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575806 (or 3575802 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 20453410120 its reverse (2101435402), we get a palindrome (22554845522).

The spelling of 20453410120 in words is "twenty billion, four hundred fifty-three million, four hundred ten thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 13 20 22 26 40 44 52 55 65 88 104 110 130 143 220 260 286 440 520 572 715 1144 1430 2860 5720 3575771 7151542 14303084 17878855 28606168 35757710 39333481 46485023 71515420 78666962 92970046 143030840 157333924 185940092 196667405 232425115 314667848 371880184 393334810 464850230 511335253 786669620 929700460 1022670506 1573339240 1859400920 2045341012 2556676265 4090682024 5113352530 10226705060 20453410120