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232030311220 = 22537930610859
BaseRepresentation
bin1101100000011000010…
…1011001001100110100
3211011220120222002021101
43120012011121030310
512300144224424340
6254332050455444
722522633050361
oct3300605311464
9734816862241
10232030311220
118a449075094
1238b76594584
1318b5a212156
14b332035468
15608044bc9a
hex3606159334

232030311220 has 24 divisors (see below), whose sum is σ = 488549325600. Its totient is φ = 92567234592.

The previous prime is 232030311193. The next prime is 232030311221. The reversal of 232030311220 is 22113030232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232030311221) 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, 15297850 + ... + 15313009.

It is an arithmetic number, because the mean of its divisors is an integer number (20356221900).

Almost surely, 2232030311220 is an apocalyptic number.

232030311220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232030311220 is an abundant number, since it is smaller than the sum of its proper divisors (256519014380).

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

232030311220 is a wasteful number, since it uses less digits than its factorization.

232030311220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30611247 (or 30611245 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 232030311220 its reverse (22113030232), we get a palindrome (254143341452).

The spelling of 232030311220 in words is "two hundred thirty-two billion, thirty million, three hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 379 758 1516 1895 3790 7580 30610859 61221718 122443436 153054295 306108590 612217180 11601515561 23203031122 46406062244 58007577805 116015155610 232030311220