Search a number
-
+
30695500 = 2253115581
BaseRepresentation
bin111010100011…
…0000001001100
32010202111022101
41311012001030
530324224000
63013524444
7521623153
oct165060114
963674271
1030695500
1116365a90
12a343724
136489724
14411059a
152a64e6a
hex1d4604c

30695500 has 48 divisors (see below), whose sum is σ = 73146528. Its totient is φ = 11160000.

The previous prime is 30695491. The next prime is 30695503. The reversal of 30695500 is 559603.

It is a happy number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30695503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2710 + ... + 8290.

It is an arithmetic number, because the mean of its divisors is an integer number (1523886).

Almost surely, 230695500 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 30695500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36573264).

30695500 is an abundant number, since it is smaller than the sum of its proper divisors (42451028).

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

30695500 is a wasteful number, since it uses less digits than its factorization.

30695500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611 (or 5599 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 30695500 is about 5540.3519743785. The cubic root of 30695500 is about 313.1061302462.

The spelling of 30695500 in words is "thirty million, six hundred ninety-five thousand, five hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 125 220 250 275 500 550 1100 1375 2750 5500 5581 11162 22324 27905 55810 61391 111620 122782 139525 245564 279050 306955 558100 613910 697625 1227820 1395250 1534775 2790500 3069550 6139100 7673875 15347750 30695500