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1305425012020 = 225193435328979
BaseRepresentation
bin10010111111110001011…
…001001110010100110100
311121210112022110121200021
4102333301121032110310
5132342002300341040
62435412020254524
7163212435343063
oct22776131162464
94553468417607
101305425012020
1146369a428aa8
12191000241444
139614101411c
144727bc821da
1523e5533124a
hex12ff164e534

1305425012020 has 24 divisors (see below), whose sum is σ = 2885676343200. Its totient is φ = 494687372832.

The previous prime is 1305425011973. The next prime is 1305425012063. The reversal of 1305425012020 is 202105245031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1717664110 + ... + 1717664869.

It is an arithmetic number, because the mean of its divisors is an integer number (120236514300).

Almost surely, 21305425012020 is an apocalyptic number.

1305425012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1305425012020 is an abundant number, since it is smaller than the sum of its proper divisors (1580251331180).

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

1305425012020 is a wasteful number, since it uses less digits than its factorization.

1305425012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3435329007 (or 3435329005 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 1305425012020 in words is "one trillion, three hundred five billion, four hundred twenty-five million, twelve thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 3435328979 6870657958 13741315916 17176644895 34353289790 65271250601 68706579580 130542501202 261085002404 326356253005 652712506010 1305425012020