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10021230311240 = 235631397037651
BaseRepresentation
bin1001000111010011111111…
…0111110111011101001000
31022111000112202210210211002
42101310333313313131020
52303141434424424430
633151404544154132
72053003300122401
oct221647767673510
938430482723732
1010021230311240
113213a86292095
12115a221908948
13578cc86ab175
1426905c9949a8
15125a1dbd5845
hex91d3fdf7748

10021230311240 has 32 divisors (see below), whose sum is σ = 22583501645760. Its totient is φ = 4002139512000.

The previous prime is 10021230311203. The next prime is 10021230311297. The reversal of 10021230311240 is 4211303212001.

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

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, 198493586 + ... + 198544065.

It is an arithmetic number, because the mean of its divisors is an integer number (705734426430).

Almost surely, 210021230311240 is an apocalyptic number.

10021230311240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021230311240 is an abundant number, since it is smaller than the sum of its proper divisors (12562271334520).

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

10021230311240 is a wasteful number, since it uses less digits than its factorization.

10021230311240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397038293 (or 397038289 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10021230311240 its reverse (4211303212001), we get a palindrome (14232533523241).

The spelling of 10021230311240 in words is "ten trillion, twenty-one billion, two hundred thirty million, three hundred eleven thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 631 1262 2524 3155 5048 6310 12620 25240 397037651 794075302 1588150604 1985188255 3176301208 3970376510 7940753020 15881506040 250530757781 501061515562 1002123031124 1252653788905 2004246062248 2505307577810 5010615155620 10021230311240