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30212506324 = 22711137545581
BaseRepresentation
bin11100001000110011…
…100100001011010100
32212222120011100020201
4130020303210023110
5443333400200244
621513542510244
72116460031550
oct341063441324
985876140221
1030212506324
11118a41991a0
125a32135384
132b0640a9a0
141668764860
15bbc603ad4
hex708ce42d4

30212506324 has 48 divisors (see below), whose sum is σ = 70988835456. Its totient is φ = 10865635200.

The previous prime is 30212506319. The next prime is 30212506393. The reversal of 30212506324 is 42360521203.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 30212506292 and 30212506301.

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, 3768787 + ... + 3776794.

It is an arithmetic number, because the mean of its divisors is an integer number (1478934072).

Almost surely, 230212506324 is an apocalyptic number.

It is an amenable number.

30212506324 is an abundant number, since it is smaller than the sum of its proper divisors (40776329132).

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

30212506324 is a wasteful number, since it uses less digits than its factorization.

30212506324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7545616 (or 7545614 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 30212506324 in words is "thirty billion, two hundred twelve million, five hundred six thousand, three hundred twenty-four".

Divisors: 1 2 4 7 11 13 14 22 26 28 44 52 77 91 143 154 182 286 308 364 572 1001 2002 4004 7545581 15091162 30182324 52819067 83001391 98092553 105638134 166002782 196185106 211276268 332005564 392370212 581009737 686647871 1079018083 1162019474 1373295742 2158036166 2324038948 2746591484 4316072332 7553126581 15106253162 30212506324