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312220223230 = 2531222022323
BaseRepresentation
bin1001000101100011100…
…01101000011011111110
31002211220011102200120111
410202301301220123332
520103411334120410
6355233150540234
731362052052326
oct4426161503376
91084804380514
10312220223230
111104591a3943
1250615b0767a
13235997ab626
141117c0c8286
1581c5430b8a
hex48b1c686fe

312220223230 has 8 divisors (see below), whose sum is σ = 561996401832. Its totient is φ = 124888089288.

The previous prime is 312220223191. The next prime is 312220223233. The reversal of 312220223230 is 32322022213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312220223233) 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, 15611011152 + ... + 15611011171.

It is an arithmetic number, because the mean of its divisors is an integer number (70249550229).

Almost surely, 2312220223230 is an apocalyptic number.

312220223230 is a deficient number, since it is larger than the sum of its proper divisors (249776178602).

312220223230 is a wasteful number, since it uses less digits than its factorization.

312220223230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31222022330.

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

Adding to 312220223230 its reverse (32322022213), we get a palindrome (344542245443).

The spelling of 312220223230 in words is "three hundred twelve billion, two hundred twenty million, two hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 31222022323 62444044646 156110111615 312220223230