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34121125420 = 2257921595649
BaseRepresentation
bin11111110001110001…
…110000111000101100
310021001221220202122221
4133301301300320230
51024340002003140
623401450045124
72315360531524
oct376161607054
9107057822587
1034121125420
111351a538608
1267431197a4
1332aa115a55
1419198cc684
15d4a82814a
hex7f1c70e2c

34121125420 has 24 divisors (see below), whose sum is σ = 72561384000. Its totient is φ = 13475684352.

The previous prime is 34121125403. The next prime is 34121125427. The reversal of 34121125420 is 2452112143.

It is not an unprimeable number, because it can be changed into a prime (34121125427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10796245 + ... + 10799404.

It is an arithmetic number, because the mean of its divisors is an integer number (3023391000).

Almost surely, 234121125420 is an apocalyptic number.

It is an amenable number.

34121125420 is an abundant number, since it is smaller than the sum of its proper divisors (38440258580).

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

34121125420 is a wasteful number, since it uses less digits than its factorization.

34121125420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21595737 (or 21595735 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 34121125420 its reverse (2452112143), we get a palindrome (36573237563).

The spelling of 34121125420 in words is "thirty-four billion, one hundred twenty-one million, one hundred twenty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 21595649 43191298 86382596 107978245 215956490 431912980 1706056271 3412112542 6824225084 8530281355 17060562710 34121125420