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312234223 = 72172343379
BaseRepresentation
bin10010100111000…
…101000011101111
3210202112010211111
4102213011003233
51114412443343
650552132451
710510642600
oct2247050357
9722463744
10312234223
11150280214
1288697127
134c8c25a2
142d679da7
151c628c9d
hex129c50ef

312234223 has 48 divisors (see below), whose sum is σ = 411713280. Its totient is φ = 234710784.

The previous prime is 312234217. The next prime is 312234259. The reversal of 312234223 is 322432213.

It is not a de Polignac number, because 312234223 - 29 = 312233711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312234194 and 312234203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312234023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 823648 + ... + 824026.

It is an arithmetic number, because the mean of its divisors is an integer number (8577360).

Almost surely, 2312234223 is an apocalyptic number.

312234223 is a deficient number, since it is larger than the sum of its proper divisors (99479057).

312234223 is a wasteful number, since it uses less digits than its factorization.

312234223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 469 counting only the distinct ones).

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

The square root of 312234223 is about 17670.1506218821. The cubic root of 312234223 is about 678.4119683115.

Adding to 312234223 its reverse (322432213), we get a palindrome (634666436).

The spelling of 312234223 in words is "three hundred twelve million, two hundred thirty-four thousand, two hundred twenty-three".

Divisors: 1 7 17 23 43 49 119 161 301 379 391 731 833 989 1127 2107 2653 2737 5117 6443 6923 8717 16297 16813 18571 19159 35819 45101 48461 61019 114079 117691 148189 277049 315707 374831 427133 798553 823837 1037323 1939343 2623817 6372127 7261261 13575401 18366719 44604889 312234223