Search a number
-
+
31442330200 = 23521011556551
BaseRepresentation
bin11101010010000110…
…111110001001011000
310000011021021212110011
4131102012332021120
51003343214031300
622235554131304
72162112253111
oct352206761130
9100137255404
1031442330200
1112375415066
126115b80b34
132c71144c18
141743c19208
15c40580eba
hex7521be258

31442330200 has 48 divisors (see below), whose sum is σ = 73827261360. Its totient is φ = 12452400000.

The previous prime is 31442330197. The next prime is 31442330243. The reversal of 31442330200 is 203324413.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 758076 + ... + 798475.

It is an arithmetic number, because the mean of its divisors is an integer number (1538067945).

Almost surely, 231442330200 is an apocalyptic number.

It is an amenable number.

31442330200 is an abundant number, since it is smaller than the sum of its proper divisors (42384931160).

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

31442330200 is a wasteful number, since it uses less digits than its factorization.

31442330200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556668 (or 1556659 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 31442330200 its reverse (203324413), we get a palindrome (31645654613).

The spelling of 31442330200 in words is "thirty-one billion, four hundred forty-two million, three hundred thirty thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 101 200 202 404 505 808 1010 2020 2525 4040 5050 10100 20200 1556551 3113102 6226204 7782755 12452408 15565510 31131020 38913775 62262040 77827550 155655100 157211651 311310200 314423302 628846604 786058255 1257693208 1572116510 3144233020 3930291275 6288466040 7860582550 15721165100 31442330200