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30102020223 = 3111627560653
BaseRepresentation
bin11100000010001110…
…000110000001111111
32212200212021001210220
4130002032012001333
5443122104121343
621454554432423
72113645643622
oct340216060177
985625231726
1030102020223
1111847895370
125a01132713
132ab95652b2
141657c03db9
15bb2a7c183
hex70238607f

30102020223 has 16 divisors (see below), whose sum is σ = 43811746176. Its totient is φ = 18232403040.

The previous prime is 30102020219. The next prime is 30102020227. The reversal of 30102020223 is 32202020103.

It is an interprime number because it is at equal distance from previous prime (30102020219) and next prime (30102020227).

It is not a de Polignac number, because 30102020223 - 22 = 30102020219 is a prime.

It is a super-2 number, since 2×301020202232 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102020227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226636 + ... + 334017.

It is an arithmetic number, because the mean of its divisors is an integer number (2738234136).

Almost surely, 230102020223 is an apocalyptic number.

30102020223 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

30102020223 is a deficient number, since it is larger than the sum of its proper divisors (13709725953).

30102020223 is a wasteful number, since it uses less digits than its factorization.

30102020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562294.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30102020223 its reverse (32202020103), we get a palindrome (62304040326).

The spelling of 30102020223 in words is "thirty billion, one hundred two million, twenty thousand, two hundred twenty-three".

Divisors: 1 3 11 33 1627 4881 17897 53691 560653 1681959 6167183 18501549 912182431 2736547293 10034006741 30102020223