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2088415453940 = 225104420772697
BaseRepresentation
bin11110011000111111010…
…000101110001011110100
321101122120021010021112022
4132120333100232023310
5233204033324011230
64235223235012312
7303611611314554
oct36307720561364
97348507107468
102088415453940
11735768095a82
122988ba13a098
13121c24001a1a
147311915b164
15394d01ae1e5
hex1e63f42e2f4

2088415453940 has 12 divisors (see below), whose sum is σ = 4385672453316. Its totient is φ = 835366181568.

The previous prime is 2088415453921. The next prime is 2088415453991. The reversal of 2088415453940 is 493545148802.

It can be written as a sum of positive squares in 2 ways, for example, as 340630980496 + 1747784473444 = 583636^2 + 1322038^2 .

It is a super-2 number, since 2×20884154539402 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52210386329 + ... + 52210386368.

It is an arithmetic number, because the mean of its divisors is an integer number (365472704443).

Almost surely, 22088415453940 is an apocalyptic number.

2088415453940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2088415453940 is an abundant number, since it is smaller than the sum of its proper divisors (2297256999376).

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

2088415453940 is a wasteful number, since it uses less digits than its factorization.

2088415453940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104420772706 (or 104420772704 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 53.

The spelling of 2088415453940 in words is "two trillion, eighty-eight billion, four hundred fifteen million, four hundred fifty-three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 104420772697 208841545394 417683090788 522103863485 1044207726970 2088415453940