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31430033110206 = 23621556950007
BaseRepresentation
bin1110010010101110111111…
…11101010111010010111110
311010021200102001021122000000
413021113133331113102332
513104422201434011311
6150502431411415130
76422513343306303
oct711273775272276
9133250361248000
1031430033110206
11a018447347585
1236374265b44a6
13146cabb231a43
147a931657d0aa
15397879903056
hex1c95dff574be

31430033110206 has 28 divisors (see below), whose sum is σ = 70685239076232. Its totient is φ = 10476677702916.

The previous prime is 31430033110199. The next prime is 31430033110213. The reversal of 31430033110206 is 60201133003413.

31430033110206 is a `hidden beast` number, since 3 + 1 + 4 + 300 + 331 + 1 + 0 + 20 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (31430033110199) and next prime (31430033110213).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 31430033110206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 10778473546 + ... + 10778476461.

Almost surely, 231430033110206 is an apocalyptic number.

31430033110206 is an abundant number, since it is smaller than the sum of its proper divisors (39255205966026).

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

31430033110206 is an equidigital number, since it uses as much as digits as its factorization.

31430033110206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21556950027 (or 21556950012 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 31430033110206 its reverse (60201133003413), we get a palindrome (91631166113619).

The spelling of 31430033110206 in words is "thirty-one trillion, four hundred thirty billion, thirty-three million, one hundred ten thousand, two hundred six".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 729 1458 21556950007 43113900014 64670850021 129341700042 194012550063 388025100126 582037650189 1164075300378 1746112950567 3492225901134 5238338851701 10476677703402 15715016555103 31430033110206