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1013030030020 = 22550651501501
BaseRepresentation
bin11101011110111010100…
…10111000101011000100
310120211210210201112101111
432233131102320223010
5113044141141430040
62053213553134404
7133121554115521
oct16573522705304
93524723645344
101013030030020
11360695051348
121443b985a404
13746b3953088
1437060b8c148
151b54064adea
hexebdd4b8ac4

1013030030020 has 12 divisors (see below), whose sum is σ = 2127363063084. Its totient is φ = 405212012000.

The previous prime is 1013030029883. The next prime is 1013030030063. The reversal of 1013030030020 is 200300303101.

It can be written as a sum of positive squares in 2 ways, for example, as 265043750976 + 747986279044 = 514824^2 + 864862^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25325750731 + ... + 25325750770.

It is an arithmetic number, because the mean of its divisors is an integer number (177280255257).

Almost surely, 21013030030020 is an apocalyptic number.

1013030030020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013030030020 is an abundant number, since it is smaller than the sum of its proper divisors (1114333033064).

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

1013030030020 is a wasteful number, since it uses less digits than its factorization.

1013030030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50651501510 (or 50651501508 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 1013030030020 its reverse (200300303101), we get a palindrome (1213330333121).

The spelling of 1013030030020 in words is "one trillion, thirteen billion, thirty million, thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 50651501501 101303003002 202606006004 253257507505 506515015010 1013030030020