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312222202203 = 31051379326107
BaseRepresentation
bin1001000101100011110…
…01001011100101011011
31002211220022011020012210
410202301321023211123
520103412340432303
6355233301210203
731362104634042
oct4426171134533
91084808136183
10312222202203
1111045a32575a
1250616700963
132359a022312
141117c481559
1581c56c2203
hex48b1e4b95b

312222202203 has 16 divisors (see below), whose sum is σ = 416818188416. Its totient is φ = 207887299200.

The previous prime is 312222202121. The next prime is 312222202241. The reversal of 312222202203 is 302202222213.

It is not a de Polignac number, because 312222202203 - 28 = 312222201947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312222202203.

It is not an unprimeable number, because it can be changed into a prime (312222242203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11946276 + ... + 11972382.

It is an arithmetic number, because the mean of its divisors is an integer number (26051136776).

Almost surely, 2312222202203 is an apocalyptic number.

312222202203 is a deficient number, since it is larger than the sum of its proper divisors (104595986213).

312222202203 is a wasteful number, since it uses less digits than its factorization.

312222202203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30954.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 312222202203 its reverse (302202222213), we get a palindrome (614424424416).

The spelling of 312222202203 in words is "three hundred twelve billion, two hundred twenty-two million, two hundred two thousand, two hundred three".

Divisors: 1 3 1051 3153 3793 11379 26107 78321 3986443 11959329 27438457 82315371 99023851 297071553 104074067401 312222202203