Search a number
-
+
30747102 = 2331533119
BaseRepresentation
bin111010101001…
…0100111011110
32010212010002120
41311102213132
530332401402
63015003410
7522226461
oct165224736
963763076
1030747102
11163a0831
12a369566
1364a7069
1441252d8
152a753bc
hex1d529de

30747102 has 32 divisors (see below), whose sum is σ = 64696320. Its totient is φ = 9728160.

The previous prime is 30747061. The next prime is 30747103. The reversal of 30747102 is 20174703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30747103) 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, 8299 + ... + 11417.

It is an arithmetic number, because the mean of its divisors is an integer number (2021760).

Almost surely, 230747102 is an apocalyptic number.

30747102 is an abundant number, since it is smaller than the sum of its proper divisors (33949218).

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

30747102 is a wasteful number, since it uses less digits than its factorization.

30747102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 30747102 is about 5545.0069431877. The cubic root of 30747102 is about 313.2814855613.

The spelling of 30747102 in words is "thirty million, seven hundred forty-seven thousand, one hundred two".

Divisors: 1 2 3 6 31 53 62 93 106 159 186 318 1643 3119 3286 4929 6238 9357 9858 18714 96689 165307 193378 290067 330614 495921 580134 991842 5124517 10249034 15373551 30747102