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234120140 = 22567717291
BaseRepresentation
bin11011111010001…
…10001111001100
3121022112112110022
431331012033030
5434413321030
635122001312
75541663002
oct1575061714
9538475408
10234120140
11110177a21
12664a6238
1339672737
1423144a72
1515848de5
hexdf463cc

234120140 has 24 divisors (see below), whose sum is σ = 492406992. Its totient is φ = 93504320.

The previous prime is 234120137. The next prime is 234120143. The reversal of 234120140 is 41021432.

It is an interprime number because it is at equal distance from previous prime (234120137) and next prime (234120143).

It is not an unprimeable number, because it can be changed into a prime (234120143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4895 + ... + 22185.

It is an arithmetic number, because the mean of its divisors is an integer number (20516958).

Almost surely, 2234120140 is an apocalyptic number.

234120140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234120140 is an abundant number, since it is smaller than the sum of its proper divisors (258286852).

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

234120140 is a wasteful number, since it uses less digits than its factorization.

234120140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17977 (or 17975 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 234120140 is about 15300.9849356177. The cubic root of 234120140 is about 616.3294570637.

Adding to 234120140 its reverse (41021432), we get a palindrome (275141572).

The spelling of 234120140 in words is "two hundred thirty-four million, one hundred twenty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 677 1354 2708 3385 6770 13540 17291 34582 69164 86455 172910 345820 11706007 23412014 46824028 58530035 117060070 234120140