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202222031 = 1156932309
BaseRepresentation
bin11000000110110…
…10100111001111
3112002111221110212
430003122213033
5403232101111
632022153035
75003600414
oct1403324717
9462457425
10202222031
11a4170450
125788277b
1332b8480b
141cc0010b
1512b4798b
hexc0da9cf

202222031 has 8 divisors (see below), whose sum is σ = 221000400. Its totient is φ = 183509440.

The previous prime is 202222019. The next prime is 202222079. The reversal of 202222031 is 130222202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-202222031 is a prime.

It is a super-2 number, since 2×2022220312 = 81787499643529922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202221997 and 202222015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202222081) 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, 9896 + ... + 22413.

It is an arithmetic number, because the mean of its divisors is an integer number (27625050).

Almost surely, 2202222031 is an apocalyptic number.

202222031 is a deficient number, since it is larger than the sum of its proper divisors (18778369).

202222031 is a wasteful number, since it uses less digits than its factorization.

202222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32889.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 202222031 is about 14220.4792816557. The cubic root of 202222031 is about 586.9613288548.

Adding to 202222031 its reverse (130222202), we get a palindrome (332444233).

The spelling of 202222031 in words is "two hundred two million, two hundred twenty-two thousand, thirty-one".

Divisors: 1 11 569 6259 32309 355399 18383821 202222031