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1025802530830 = 257114330981653
BaseRepresentation
bin11101110110101101001…
…10000111000000001110
310122001202221102210122001
432323112212013000032
5113301320421441310
62103125220142514
7134053225434310
oct16732646070016
93561687383561
101025802530830
11366049871240
12146983237a3a
137596ab5cb6c
14379132177b0
151ba3bb1093a
hexeed698700e

1025802530830 has 64 divisors (see below), whose sum is σ = 2355597116928. Its totient is φ = 312295052160.

The previous prime is 1025802530821. The next prime is 1025802530833. The reversal of 1025802530830 is 380352085201.

1025802530830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1025802530830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025802530833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15457717 + ... + 15523936.

It is an arithmetic number, because the mean of its divisors is an integer number (36806204952).

Almost surely, 21025802530830 is an apocalyptic number.

1025802530830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1025802530830 is an abundant number, since it is smaller than the sum of its proper divisors (1329794586098).

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

1025802530830 is a wasteful number, since it uses less digits than its factorization.

1025802530830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30981721.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 1025802530830 in words is "one trillion, twenty-five billion, eight hundred two million, five hundred thirty thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 43 55 70 77 86 110 154 215 301 385 430 473 602 770 946 1505 2365 3010 3311 4730 6622 16555 33110 30981653 61963306 154908265 216871571 309816530 340798183 433743142 681596366 1084357855 1332211079 1703990915 2168715710 2385587281 2664422158 3407981830 4771174562 6661055395 9325477553 11927936405 13322110790 14654321869 18650955106 23855872810 29308643738 46627387765 73271609345 93254775530 102580253083 146543218690 205160506166 512901265415 1025802530830