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30146560 = 218523
BaseRepresentation
bin111001100000…
…0000000000000
32002201121022021
41303000000000
530204142220
62554051224
7514145563
oct163000000
962647267
1030146560
1116020614
12a119b14
136326902
14400a4da
1529a74aa
hex1cc0000

30146560 has 76 divisors (see below), whose sum is σ = 75497328. Its totient is φ = 11534336.

The previous prime is 30146531. The next prime is 30146563. The reversal of 30146560 is 6564103.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (30146563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310709 + ... + 1310731.

Almost surely, 230146560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30146560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37748664).

30146560 is an abundant number, since it is smaller than the sum of its proper divisors (45350768).

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

30146560 is an frugal number, since it uses more digits than its factorization.

30146560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 30146560 is about 5490.5883109190. The cubic root of 30146560 is about 311.2284243900.

The spelling of 30146560 in words is "thirty million, one hundred forty-six thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 23 32 40 46 64 80 92 115 128 160 184 230 256 320 368 460 512 640 736 920 1024 1280 1472 1840 2048 2560 2944 3680 4096 5120 5888 7360 8192 10240 11776 14720 16384 20480 23552 29440 32768 40960 47104 58880 65536 81920 94208 117760 131072 163840 188416 235520 262144 327680 376832 471040 655360 753664 942080 1310720 1507328 1884160 3014656 3768320 6029312 7536640 15073280 30146560