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30006293660 = 2257247651461
BaseRepresentation
bin11011111100100000…
…111011010010011100
32212110012010122122122
4123330200323102130
5442423102344120
621441255002112
72111404200500
oct337440732234
985405118578
1030006293660
11117a8852602
125995069338
132aa2789965
141649206300
15ba946da25
hex6fc83b49c

30006293660 has 72 divisors (see below), whose sum is σ = 74860801344. Its totient is φ = 10068965760.

The previous prime is 30006293651. The next prime is 30006293671. The reversal of 30006293660 is 6639260003.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 30006293660.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279671 + ... + 371790.

It is an arithmetic number, because the mean of its divisors is an integer number (1039733352).

Almost surely, 230006293660 is an apocalyptic number.

It is an amenable number.

30006293660 is an abundant number, since it is smaller than the sum of its proper divisors (44854507684).

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

30006293660 is a wasteful number, since it uses less digits than its factorization.

30006293660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651531 (or 651522 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 35.

The spelling of 30006293660 in words is "thirty billion, six million, two hundred ninety-three thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 47 49 70 94 98 140 188 196 235 245 329 470 490 658 940 980 1316 1645 2303 3290 4606 6580 9212 11515 23030 46060 651461 1302922 2605844 3257305 4560227 6514610 9120454 13029220 18240908 22801135 30618667 31921589 45602270 61237334 63843178 91204540 122474668 127686356 153093335 159607945 214330669 306186670 319215890 428661338 612373340 638431780 857322676 1071653345 1500314683 2143306690 3000629366 4286613380 6001258732 7501573415 15003146830 30006293660