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1020331463125 = 5413125579257
BaseRepresentation
bin11101101100100000111…
…11101001000111010101
310121112122122122202122211
432312100133221013111
5113204114323310000
62100422300153421
7133500523223512
oct16662037510725
93545578582584
101020331463125
113637a1569087
121458b6b38871
13752a85391b0
1437554772309
151b81b6587ba
hexed907e91d5

1020331463125 has 20 divisors (see below), whose sum is σ = 1373083606972. Its totient is φ = 753475536000.

The previous prime is 1020331463083. The next prime is 1020331463257. The reversal of 1020331463125 is 5213641330201.

It can be written as a sum of positive squares in 10 ways, for example, as 1017003673156 + 3327789969 = 1008466^2 + 57687^2 .

It is not a de Polignac number, because 1020331463125 - 233 = 1011741528533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62781504 + ... + 62797753.

Almost surely, 21020331463125 is an apocalyptic number.

It is an amenable number.

1020331463125 is a deficient number, since it is larger than the sum of its proper divisors (352752143847).

1020331463125 is an equidigital number, since it uses as much as digits as its factorization.

1020331463125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125579290 (or 125579275 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 1020331463125 its reverse (5213641330201), we get a palindrome (6233972793326).

The spelling of 1020331463125 in words is "one trillion, twenty billion, three hundred thirty-one million, four hundred sixty-three thousand, one hundred twenty-five".

Divisors: 1 5 13 25 65 125 325 625 1625 8125 125579257 627896285 1632530341 3139481425 8162651705 15697407125 40813258525 78487035625 204066292625 1020331463125