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30011838960 = 24356110911879
BaseRepresentation
bin11011111100110110…
…000101000111110000
32212110120120101101010
4123330312011013300
5442431012321320
621442013510520
72111502264525
oct337466050760
985416511333
1030011838960
111180099a8a4
125996aa2440
132aa397b9bc
141649c4b14c
15ba9bb6ae0
hex6fcd851f0

30011838960 has 160 divisors (see below), whose sum is σ = 94698938880. Its totient is φ = 7860556800.

The previous prime is 30011838937. The next prime is 30011838979. The reversal of 30011838960 is 6983811003.

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 31 ways as a sum of consecutive naturals, for example, 15971301 + ... + 15973179.

It is an arithmetic number, because the mean of its divisors is an integer number (591868368).

Almost surely, 230011838960 is an apocalyptic number.

30011838960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30011838960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47349469440).

30011838960 is an abundant number, since it is smaller than the sum of its proper divisors (64687099920).

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

30011838960 is a wasteful number, since it uses less digits than its factorization.

30011838960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047 (or 3041 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 30011838960 in words is "thirty billion, eleven million, eight hundred thirty-eight thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 61 80 120 122 183 240 244 305 366 488 610 732 915 976 1091 1220 1464 1830 1879 2182 2440 2928 3273 3660 3758 4364 4880 5455 5637 6546 7320 7516 8728 9395 10910 11274 13092 14640 15032 16365 17456 18790 21820 22548 26184 28185 30064 32730 37580 43640 45096 52368 56370 65460 66551 75160 87280 90192 112740 114619 130920 133102 150320 199653 225480 229238 261840 266204 332755 343857 399306 450960 458476 532408 573095 665510 687714 798612 916952 998265 1064816 1146190 1331020 1375428 1597224 1719285 1833904 1996530 2049989 2292380 2662040 2750856 3194448 3438570 3993060 4099978 4584760 5324080 5501712 6149967 6877140 7986120 8199956 9169520 10249945 12299934 13754280 15972240 16399912 20499890 24599868 27508560 30749835 32799824 40999780 49199736 61499670 81999560 98399472 122999340 125049329 163999120 245998680 250098658 375147987 491997360 500197316 625246645 750295974 1000394632 1250493290 1500591948 1875739935 2000789264 2500986580 3001183896 3751479870 5001973160 6002367792 7502959740 10003946320 15005919480 30011838960