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2031232130020 = 225827853143971
BaseRepresentation
bin11101100011101110110…
…111101001101111100100
321012011222001121102222101
4131203232313221233210
5231234430411130040
64153045105541444
7266515553141512
oct35435667515744
97164861542871
102031232130020
11713493646395
122897bb644884
1311970cc90292
14704527cd4b2
1537c84d8c09a
hex1d8eede9be4

2031232130020 has 48 divisors (see below), whose sum is σ = 4275781812288. Its totient is φ = 810553403520.

The previous prime is 2031232129981. The next prime is 2031232130027. The reversal of 2031232130020 is 200312321302.

It is a self number, because there is not a number n which added to its sum of digits gives 2031232130020.

It is not an unprimeable number, because it can be changed into a prime (2031232130027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14036635 + ... + 14180605.

It is an arithmetic number, because the mean of its divisors is an integer number (89078787756).

Almost surely, 22031232130020 is an apocalyptic number.

2031232130020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031232130020 is an abundant number, since it is smaller than the sum of its proper divisors (2244549682268).

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

2031232130020 is a wasteful number, since it uses less digits than its factorization.

2031232130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145660 (or 145658 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 2031232130020 its reverse (200312321302), we get a palindrome (2231544451322).

The spelling of 2031232130020 in words is "two trillion, thirty-one billion, two hundred thirty-two million, one hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 827 853 1654 1706 3308 3412 4135 4265 8270 8530 16540 17060 143971 287942 575884 705431 719855 1410862 1439710 2821724 2879420 3527155 7054310 14108620 119064017 122807263 238128034 245614526 476256068 491229052 595320085 614036315 1190640170 1228072630 2381280340 2456145260 101561606501 203123213002 406246426004 507808032505 1015616065010 2031232130020