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30725073270 = 2325943336191
BaseRepresentation
bin11100100111010110…
…110110100101110110
32221022021122102220200
4130213112312211312
51000411104321040
622040452541330
72135252546043
oct344726664566
987267572820
1030725073270
1112037559341
125b55921846
132b88672b38
1416b686c1ca
15bec600630
hex7275b6976

30725073270 has 48 divisors (see below), whose sum is σ = 79895866752. Its totient is φ = 8192257920.

The previous prime is 30725073229. The next prime is 30725073277. The reversal of 30725073270 is 7237052703.

30725073270 is a `hidden beast` number, since 307 + 25 + 0 + 7 + 327 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30725073277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 830875 + ... + 867065.

It is an arithmetic number, because the mean of its divisors is an integer number (1664497224).

Almost surely, 230725073270 is an apocalyptic number.

30725073270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30725073270 is an abundant number, since it is smaller than the sum of its proper divisors (49170793482).

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

30725073270 is a wasteful number, since it uses less digits than its factorization.

30725073270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45637 (or 45634 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 36.

The spelling of 30725073270 in words is "thirty billion, seven hundred twenty-five million, seventy-three thousand, two hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 9433 18866 28299 36191 47165 56598 72382 84897 94330 108573 141495 169794 180955 217146 282990 325719 361910 424485 542865 651438 848970 1085730 1628595 3257190 341389703 682779406 1024169109 1706948515 2048338218 3072507327 3413897030 5120845545 6145014654 10241691090 15362536635 30725073270