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1020020201015 = 51789929145139
BaseRepresentation
bin11101101011111011111…
…00010001011000110111
310121111211221222000022112
432311331330101120313
5113203000132413030
62100331340521235
7133460023440014
oct16657574213067
93544757860275
101020020201015
113636518a2272
1214582a85021b
1375258bc722a
14375252aa70b
151b7ee172a95
hexed7df11637

1020020201015 has 32 divisors (see below), whose sum is σ = 1312007544000. Its totient is φ = 758563176448.

The previous prime is 1020020201009. The next prime is 1020020201029. The reversal of 1020020201015 is 5101020200201.

It is a cyclic number.

It is not a de Polignac number, because 1020020201015 - 224 = 1020003423799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6955316 + ... + 7100454.

It is an arithmetic number, because the mean of its divisors is an integer number (41000235750).

Almost surely, 21020020201015 is an apocalyptic number.

1020020201015 is a deficient number, since it is larger than the sum of its proper divisors (291987342985).

1020020201015 is a wasteful number, since it uses less digits than its factorization.

1020020201015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146179.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 1020020201015 its reverse (5101020200201), we get a palindrome (6121040401216).

The spelling of 1020020201015 in words is "one trillion, twenty billion, twenty million, two hundred one thousand, fifteen".

Divisors: 1 5 17 85 89 445 929 1513 4645 7565 15793 78965 82681 145139 413405 725695 1405577 2467363 7027885 12336815 12917371 64586855 134834131 219595307 674170655 1097976535 2292180227 11460901135 12000237659 60001188295 204004040203 1020020201015