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234331232140 = 22511716561607
BaseRepresentation
bin1101101000111100111…
…0101101011110001100
3211101211221112222101201
43122033032231132030
512314402243412030
6255352243315244
722633642415545
oct3321716553614
9741757488351
10234331232140
1190419965025
12394b907bb24
1319135b1a515
14b4ad8634cc
1561674512ca
hex368f3ad78c

234331232140 has 12 divisors (see below), whose sum is σ = 492095587536. Its totient is φ = 93732492848.

The previous prime is 234331232129. The next prime is 234331232147. The reversal of 234331232140 is 41232133432.

It is a happy number.

It is a super-2 number, since 2×2343312321402 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 234331232099 and 234331232108.

It is not an unprimeable number, because it can be changed into a prime (234331232147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5858280784 + ... + 5858280823.

It is an arithmetic number, because the mean of its divisors is an integer number (41007965628).

Almost surely, 2234331232140 is an apocalyptic number.

234331232140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234331232140 is an abundant number, since it is smaller than the sum of its proper divisors (257764355396).

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

234331232140 is a wasteful number, since it uses less digits than its factorization.

234331232140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11716561616 (or 11716561614 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 234331232140 its reverse (41232133432), we get a palindrome (275563365572).

The spelling of 234331232140 in words is "two hundred thirty-four billion, three hundred thirty-one million, two hundred thirty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 11716561607 23433123214 46866246428 58582808035 117165616070 234331232140