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30597952980 = 2235731486781
BaseRepresentation
bin11100011111110001…
…111011010111010100
32220222102110001122210
4130133301323113110
51000131033443410
622020112153420
72132150211000
oct343761732724
986872401583
1030597952980
1111a81823a51
125b1b238870
132b6822502a
1416a3a1b700
15be1390220
hex71fc7b5d4

30597952980 has 96 divisors (see below), whose sum is σ = 99911750400. Its totient is φ = 6993813120.

The previous prime is 30597952969. The next prime is 30597952981. The reversal of 30597952980 is 8925979503.

It is a self number, because there is not a number n which added to its sum of digits gives 30597952980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30597952981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 722811 + ... + 763970.

It is an arithmetic number, because the mean of its divisors is an integer number (1040747400).

Almost surely, 230597952980 is an apocalyptic number.

30597952980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30597952980 is an abundant number, since it is smaller than the sum of its proper divisors (69313797420).

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

30597952980 is a wasteful number, since it uses less digits than its factorization.

30597952980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486814 (or 1486798 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 57.

The spelling of 30597952980 in words is "thirty billion, five hundred ninety-seven million, nine hundred fifty-two thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 343 420 490 588 686 735 980 1029 1372 1470 1715 2058 2940 3430 4116 5145 6860 10290 20580 1486781 2973562 4460343 5947124 7433905 8920686 10407467 14867810 17841372 20814934 22301715 29735620 31222401 41629868 44603430 52037335 62444802 72852269 89206860 104074670 124889604 145704538 156112005 208149340 218556807 291409076 312224010 364261345 437113614 509965883 624448020 728522690 874227228 1019931766 1092784035 1457045380 1529897649 2039863532 2185568070 2549829415 3059795298 4371136140 5099658830 6119590596 7649488245 10199317660 15298976490 30597952980