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313020222 = 233710211381
BaseRepresentation
bin10010101010000…
…100111100111110
3210211000002000120
4102222010330332
51120113121342
651021035410
710520425254
oct2252047476
9724002016
10313020222
111507677a9
12889b5b66
134cb09288
142d8025d4
151c731aec
hex12a84f3e

313020222 has 32 divisors (see below), whose sum is σ = 644056224. Its totient is φ = 101347200.

The previous prime is 313020217. The next prime is 313020241. The reversal of 313020222 is 222020313.

It is a super-4 number, since 4×3130202224 (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225972 + ... + 227352.

It is an arithmetic number, because the mean of its divisors is an integer number (20126757).

Almost surely, 2313020222 is an apocalyptic number.

313020222 is an abundant number, since it is smaller than the sum of its proper divisors (331036002).

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

313020222 is a wasteful number, since it uses less digits than its factorization.

313020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 313020222 is about 17692.3775112335. The cubic root of 313020222 is about 678.9807553237.

Adding to 313020222 its reverse (222020313), we get a palindrome (535040535).

Subtracting from 313020222 its reverse (222020313), we obtain a palindrome (90999909).

The spelling of 313020222 in words is "three hundred thirteen million, twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 37 74 111 222 1021 1381 2042 2762 3063 4143 6126 8286 37777 51097 75554 102194 113331 153291 226662 306582 1410001 2820002 4230003 8460006 52170037 104340074 156510111 313020222