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120212021140 = 22515391390527
BaseRepresentation
bin110111111110100110…
…0011101111110010100
3102111021210010101211021
41233331030131332110
53432143234134030
6131120304450524
711453652214561
oct1577514357624
9374253111737
10120212021140
1146a88608802
121b36a919a44
13b44a0c0173
145b65577868
1531d88d697a
hex1bfd31df94

120212021140 has 24 divisors (see below), whose sum is σ = 252462292992. Its totient is φ = 48081561120.

The previous prime is 120212021117. The next prime is 120212021141. The reversal of 120212021140 is 41120212021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212021141) 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, 112557 + ... + 503083.

It is an arithmetic number, because the mean of its divisors is an integer number (10519262208).

Almost surely, 2120212021140 is an apocalyptic number.

120212021140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120212021140 is an abundant number, since it is smaller than the sum of its proper divisors (132250271852).

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

120212021140 is a wasteful number, since it uses less digits than its factorization.

120212021140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405927 (or 405925 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120212021140 its reverse (41120212021), we get a palindrome (161332233161).

The spelling of 120212021140 in words is "one hundred twenty billion, two hundred twelve million, twenty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 15391 30782 61564 76955 153910 307820 390527 781054 1562108 1952635 3905270 7810540 6010601057 12021202114 24042404228 30053005285 60106010570 120212021140