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30955050 = 23252731317
BaseRepresentation
bin111011000010…
…1011000101010
32011020200100100
41312011120222
530411030200
63023250230
7524053650
oct166053052
964220310
1030955050
1116522a95
12a449976
13654a8c9
14417add0
152ab6d00
hex1d8562a

30955050 has 144 divisors (see below), whose sum is σ = 98422272. Its totient is φ = 6825600.

The previous prime is 30955049. The next prime is 30955073. The reversal of 30955050 is 5055903.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 97492 + ... + 97808.

It is an arithmetic number, because the mean of its divisors is an integer number (683488).

Almost surely, 230955050 is an apocalyptic number.

30955050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30955050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49211136).

30955050 is an abundant number, since it is smaller than the sum of its proper divisors (67467222).

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

30955050 is a wasteful number, since it uses less digits than its factorization.

30955050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 27.

The square root of 30955050 is about 5563.7262693271. The cubic root of 30955050 is about 313.9861583956.

The spelling of 30955050 in words is "thirty million, nine hundred fifty-five thousand, fifty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 25 30 31 35 42 45 50 62 63 70 75 90 93 105 126 150 155 175 186 210 217 225 279 310 315 317 350 434 450 465 525 558 630 634 651 775 930 951 1050 1085 1302 1395 1550 1575 1585 1902 1953 2170 2219 2325 2790 2853 3150 3170 3255 3906 4438 4650 4755 5425 5706 6510 6657 6975 7925 9510 9765 9827 10850 11095 13314 13950 14265 15850 16275 19530 19654 19971 22190 23775 28530 29481 32550 33285 39942 47550 48825 49135 55475 58962 66570 68789 71325 88443 97650 98270 99855 110950 137578 142650 147405 166425 176886 199710 206367 245675 294810 332850 343945 412734 442215 491350 499275 619101 687890 737025 884430 998550 1031835 1238202 1474050 1719725 2063670 2211075 3095505 3439450 4422150 5159175 6191010 10318350 15477525 30955050