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1020010172012 = 221321508890787
BaseRepresentation
bin11101101011111010101…
…10000000111001101100
310121111211021002111002222
432311331112000321230
5113202440101001022
62100330341534512
7133456542256646
oct16657526007154
93544737074088
101020010172012
11363647172337
12145827414438
1375256ac5400
1437523c19896
151b7ed341242
hexed7d580e6c

1020010172012 has 18 divisors (see below), whose sum is σ = 1932889099428. Its totient is φ = 470773925232.

The previous prime is 1020010172011. The next prime is 1020010172057. The reversal of 1020010172012 is 2102710100201.

It is not an unprimeable number, because it can be changed into a prime (1020010172011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 754444718 + ... + 754446069.

It is an arithmetic number, because the mean of its divisors is an integer number (107382727746).

Almost surely, 21020010172012 is an apocalyptic number.

It is an amenable number.

1020010172012 is a deficient number, since it is larger than the sum of its proper divisors (912878927416).

1020010172012 is a wasteful number, since it uses less digits than its factorization.

1020010172012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508890817 (or 1508890802 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 1020010172012 its reverse (2102710100201), we get a palindrome (3122720272213).

The spelling of 1020010172012 in words is "one trillion, twenty billion, ten million, one hundred seventy-two thousand, twelve".

Divisors: 1 2 4 13 26 52 169 338 676 1508890787 3017781574 6035563148 19615580231 39231160462 78462320924 255002543003 510005086006 1020010172012