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30213212223 = 312318181211
BaseRepresentation
bin11100001000110110…
…010000100000111111
32212222121111012120010
4130020312100200333
5443334040242343
621514005554303
72116466031555
oct341066204077
985877435503
1030213212223
11118a4630587
125a32415993
132b065c708c
1416688a9bd5
15bbc6e2d33
hex708d9083f

30213212223 has 8 divisors (see below), whose sum is σ = 40317012736. Its totient is φ = 20125776600.

The previous prime is 30213212203. The next prime is 30213212233. The reversal of 30213212223 is 32221231203.

It is a happy number.

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

It is not a de Polignac number, because 30213212223 - 29 = 30213211711 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 30213212223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213212203) 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, 4086913 + ... + 4094298.

It is an arithmetic number, because the mean of its divisors is an integer number (5039626592).

Almost surely, 230213212223 is an apocalyptic number.

30213212223 is a deficient number, since it is larger than the sum of its proper divisors (10103800513).

30213212223 is a wasteful number, since it uses less digits than its factorization.

30213212223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8182445.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30213212223 its reverse (32221231203), we get a palindrome (62434443426).

The spelling of 30213212223 in words is "thirty billion, two hundred thirteen million, two hundred twelve thousand, two hundred twenty-three".

Divisors: 1 3 1231 3693 8181211 24543633 10071070741 30213212223