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2020302021440 = 26529992105183
BaseRepresentation
bin11101011001100011011…
…000100110001101000000
321011010202022200101202002
4131121203120212031000
5231100034304141230
64144040335443132
7265650652560653
oct35314330461500
97133668611662
102020302021440
11709894904aaa
1228766b0864a8
1311868a696c01
146dad6d1389a
1537845506545
hex1d663626340

2020302021440 has 56 divisors (see below), whose sum is σ = 4812450624000. Its totient is φ = 807850961408.

The previous prime is 2020302021431. The next prime is 2020302021449. The reversal of 2020302021440 is 441202030202.

It is an interprime number because it is at equal distance from previous prime (2020302021431) and next prime (2020302021449).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020302021449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92912 + ... + 2012271.

Almost surely, 22020302021440 is an apocalyptic number.

2020302021440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020302021440 is an abundant number, since it is smaller than the sum of its proper divisors (2792148602560).

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

2020302021440 is a wasteful number, since it uses less digits than its factorization.

2020302021440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108199 (or 2108189 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 2020302021440 its reverse (441202030202), we get a palindrome (2461504051642).

The spelling of 2020302021440 in words is "two trillion, twenty billion, three hundred two million, twenty-one thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 2999 5998 11996 14995 23992 29990 47984 59980 95968 119960 191936 239920 479840 959680 2105183 4210366 8420732 10525915 16841464 21051830 33682928 42103660 67365856 84207320 134731712 168414640 336829280 673658560 6313443817 12626887634 25253775268 31567219085 50507550536 63134438170 101015101072 126268876340 202030202144 252537752680 404060404288 505075505360 1010151010720 2020302021440