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180985619030 = 2518098561903
BaseRepresentation
bin1010100010001110010…
…1010110001001010110
3122022011012101001101012
42220203211112021112
510431124304302110
6215051005532222
716034664243656
oct2504345261126
9568135331335
10180985619030
116a834733367
122b0ab874072
13140b3bb7a88
148a8ca82366
154a93ee8905
hex2a23956256

180985619030 has 8 divisors (see below), whose sum is σ = 325774114272. Its totient is φ = 72394247608.

The previous prime is 180985619027. The next prime is 180985619033. The reversal of 180985619030 is 30916589081.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (180985619027) and next prime (180985619033).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 180985619030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180985619033) 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 3 ways as a sum of consecutive naturals, for example, 9049280942 + ... + 9049280961.

It is an arithmetic number, because the mean of its divisors is an integer number (40721764284).

Almost surely, 2180985619030 is an apocalyptic number.

180985619030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180985619030 is a deficient number, since it is larger than the sum of its proper divisors (144788495242).

180985619030 is a wasteful number, since it uses less digits than its factorization.

180985619030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18098561910.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 180985619030 in words is "one hundred eighty billion, nine hundred eighty-five million, six hundred nineteen thousand, thirty".

Divisors: 1 2 5 10 18098561903 36197123806 90492809515 180985619030