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30213211340 = 22513443262313
BaseRepresentation
bin11100001000110110…
…010000010011001100
32212222121111011100102
4130020312100103030
5443334040230330
621514005550232
72116466026154
oct341066202314
985877434312
1030213211340
11118a462a954
125a32415378
132b065c6860
1416688a9764
15bbc6e2945
hex708d904cc

30213211340 has 48 divisors (see below), whose sum is σ = 68482840608. Its totient is φ = 11130422784.

The previous prime is 30213211339. The next prime is 30213211403. The reversal of 30213211340 is 4311231203.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 15977 + ... + 246336.

It is an arithmetic number, because the mean of its divisors is an integer number (1426725846).

Almost surely, 230213211340 is an apocalyptic number.

It is an amenable number.

30213211340 is an abundant number, since it is smaller than the sum of its proper divisors (38269629268).

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

30213211340 is a wasteful number, since it uses less digits than its factorization.

30213211340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262778 (or 262776 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30213211340 its reverse (4311231203), we get a palindrome (34524442543).

The spelling of 30213211340 in words is "thirty billion, two hundred thirteen million, two hundred eleven thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 443 886 1772 2215 4430 5759 8860 11518 23036 28795 57590 115180 262313 524626 1049252 1311565 2623130 3410069 5246260 6820138 13640276 17050345 34100690 68201380 116204659 232409318 464818636 581023295 1162046590 1510660567 2324093180 3021321134 6042642268 7553302835 15106605670 30213211340