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2031010010020 = 225179643619471
BaseRepresentation
bin11101100011100001101…
…000010101001110100100
321012011101120122120121201
4131203201220111032210
5231234002030310040
64153011053052244
7266510215145365
oct35434150251644
97164346576551
102031010010020
1171338a225342
12289759187084
131196a5c5c924
14704310cdb6c
1537c70613a9a
hex1d8e1a153a4

2031010010020 has 48 divisors (see below), whose sum is σ = 4516486103808. Its totient is φ = 764535006720.

The previous prime is 2031010010017. The next prime is 2031010010083. The reversal of 2031010010020 is 200100101302.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2031010009979 and 2031010010006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2968885 + ... + 3588355.

It is an arithmetic number, because the mean of its divisors is an integer number (94093460496).

Almost surely, 22031010010020 is an apocalyptic number.

2031010010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031010010020 is an abundant number, since it is smaller than the sum of its proper divisors (2485476093788).

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

2031010010020 is a wasteful number, since it uses less digits than its factorization.

2031010010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629140 (or 629138 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 2031010010020 its reverse (200100101302), we get a palindrome (2231110111322).

The spelling of 2031010010020 in words is "two trillion, thirty-one billion, ten million, ten thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 9643 19286 38572 48215 96430 163931 192860 327862 619471 655724 819655 1238942 1639310 2477884 3097355 3278620 6194710 10531007 12389420 21062014 42124028 52655035 105310070 210620140 5973558853 11947117706 23894235412 29867794265 59735588530 101550500501 119471177060 203101001002 406202002004 507752502505 1015505005010 2031010010020