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143020302120 = 23325397278617
BaseRepresentation
bin1000010100110010101…
…1001001111100101000
3111200011022221010100200
42011030223021330220
54320401144131440
6145411433232200
713222114336563
oct2051453117450
9450138833320
10143020302120
11557222608a3
1223875262660
1310643534307
146cca7db4da
153ac0e75c30
hex214cac9f28

143020302120 has 48 divisors (see below), whose sum is σ = 464815983060. Its totient is φ = 38138747136.

The previous prime is 143020302119. The next prime is 143020302121. The reversal of 143020302120 is 21203020341.

143020302120 is a `hidden beast` number, since 1 + 430 + 20 + 3 + 0 + 212 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (143020302119) and next prime (143020302121).

It can be written as a sum of positive squares in 2 ways, for example, as 129500659044 + 13519643076 = 359862^2 + 116274^2 .

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 = 143020302093 and 143020302102.

It is not an unprimeable number, because it can be changed into a prime (143020302121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198638949 + ... + 198639668.

Almost surely, 2143020302120 is an apocalyptic number.

143020302120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143020302120 is an abundant number, since it is smaller than the sum of its proper divisors (321795680940).

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

143020302120 is a wasteful number, since it uses less digits than its factorization.

143020302120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397278634 (or 397278627 counting only the distinct ones).

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

Adding to 143020302120 its reverse (21203020341), we get a palindrome (164223322461).

The spelling of 143020302120 in words is "one hundred forty-three billion, twenty million, three hundred two thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 397278617 794557234 1191835851 1589114468 1986393085 2383671702 3178228936 3575507553 3972786170 4767343404 5959179255 7151015106 7945572340 9534686808 11918358510 14302030212 15891144680 17877537765 23836717020 28604060424 35755075530 47673434040 71510151060 143020302120