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20211113222240 = 255131964270669
BaseRepresentation
bin1001001100001110001000…
…01110010110000001100000
32122120011102020020101002212
410212013010032112001200
510122114324441102430
6110552505055101252
74154130140553503
oct446070416260140
978504366211085
1020211113222240
116492537569626
122325070b11828
13b37b90b20455
144dc31a28313a
15250b0dcb1b95
hex1261c4396060

20211113222240 has 48 divisors (see below), whose sum is σ = 48113249350320. Its totient is φ = 8022731957760.

The previous prime is 20211113222239. The next prime is 20211113222269. The reversal of 20211113222240 is 4222231111202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482114375 + ... + 482156294.

It is an arithmetic number, because the mean of its divisors is an integer number (1002359361465).

Almost surely, 220211113222240 is an apocalyptic number.

20211113222240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211113222240 is an abundant number, since it is smaller than the sum of its proper divisors (27902136128080).

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

20211113222240 is a wasteful number, since it uses less digits than its factorization.

20211113222240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964270815 (or 964270807 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 20211113222240 its reverse (4222231111202), we get a palindrome (24433344333442).

The spelling of 20211113222240 in words is "twenty trillion, two hundred eleven billion, one hundred thirteen million, two hundred twenty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 131 160 262 524 655 1048 1310 2096 2620 4192 5240 10480 20960 964270669 1928541338 3857082676 4821353345 7714165352 9642706690 15428330704 19285413380 30856661408 38570826760 77141653520 126319457639 154283307040 252638915278 505277830556 631597288195 1010555661112 1263194576390 2021111322224 2526389152780 4042222644448 5052778305560 10105556611120 20211113222240