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30221313294 = 23311491090471
BaseRepresentation
bin11100001001010101…
…001010010100001110
32220000011201210010210
4130021111022110032
5443343124011134
621514455343250
72116624632054
oct341125122416
986004653123
1030221313294
11118a9163a87
125a35081b26
132b081a2503
1416699b81d4
15bbd2932e9
hex70954a50e

30221313294 has 32 divisors (see below), whose sum is σ = 62811187200. Its totient is φ = 9683373600.

The previous prime is 30221313293. The next prime is 30221313313. The reversal of 30221313294 is 49231312203.

It is a super-2 number, since 2×302213132942 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221313293) 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, 517522 + ... + 572949.

It is an arithmetic number, because the mean of its divisors is an integer number (1962849600).

Almost surely, 230221313294 is an apocalyptic number.

30221313294 is an abundant number, since it is smaller than the sum of its proper divisors (32589873906).

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

30221313294 is a wasteful number, since it uses less digits than its factorization.

30221313294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090656.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 30221313294 its reverse (49231312203), we get a palindrome (79452625497).

The spelling of 30221313294 in words is "thirty billion, two hundred twenty-one million, three hundred thirteen thousand, two hundred ninety-four".

Divisors: 1 2 3 6 31 62 93 149 186 298 447 894 4619 9238 13857 27714 1090471 2180942 3271413 6542826 33804601 67609202 101413803 162480179 202827606 324960358 487440537 974881074 5036885549 10073771098 15110656647 30221313294