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20031300219 = 3747711971451
BaseRepresentation
bin10010101001111101…
…010110001001111011
31220201000102111002010
4102221331112021323
5312011003101334
613111404141003
71306252146120
oct225175261173
956630374063
1020031300219
11854a168377
123a70537763
131b73016688
14d80512747
157c38a00e9
hex4a9f5627b

20031300219 has 64 divisors (see below), whose sum is σ = 31794757632. Its totient is φ = 10981488000.

The previous prime is 20031300173. The next prime is 20031300257. The reversal of 20031300219 is 91200313002.

It is a happy number.

It is not a de Polignac number, because 20031300219 - 28 = 20031299963 is a prime.

It is a super-2 number, since 2×200313002192 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20031300195 and 20031300204.

It is not an unprimeable number, because it can be changed into a prime (20031301219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13804444 + ... + 13805894.

It is an arithmetic number, because the mean of its divisors is an integer number (496793088).

Almost surely, 220031300219 is an apocalyptic number.

20031300219 is a deficient number, since it is larger than the sum of its proper divisors (11763457413).

20031300219 is a wasteful number, since it uses less digits than its factorization.

20031300219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776.

The product of its (nonzero) digits is 324, while the sum is 21.

The spelling of 20031300219 in words is "twenty billion, thirty-one million, three hundred thousand, two hundred nineteen".

Divisors: 1 3 7 21 47 71 141 197 213 329 497 591 987 1379 1451 1491 3337 4137 4353 9259 10011 10157 13987 23359 27777 30471 41961 64813 68197 70077 97909 103021 194439 204591 285847 293727 309063 477379 657389 721147 857541 1432137 1972167 2000929 2163441 4601723 4841987 6002787 13434809 13805169 14525961 20295137 33893909 40304427 60885411 94043663 101681727 142065959 282130989 426197877 953871439 2861614317 6677100073 20031300219