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30263976 = 2333140111
BaseRepresentation
bin111001101110…
…0101010101000
32002221120101000
41303130222220
530221421401
63000355000
7515145111
oct163345250
962846330
1030263976
11160a0856
12a175a60
1363681a2
14403b208
1529cc186
hex1cdcaa8

30263976 has 32 divisors (see below), whose sum is σ = 84067200. Its totient is φ = 10087920.

The previous prime is 30263971. The next prime is 30263993. The reversal of 30263976 is 67936203.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 30263976.

It is not an unprimeable number, because it can be changed into a prime (30263971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69840 + ... + 70271.

It is an arithmetic number, because the mean of its divisors is an integer number (2627100).

Almost surely, 230263976 is an apocalyptic number.

30263976 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30263976 is an abundant number, since it is smaller than the sum of its proper divisors (53803224).

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

30263976 is a wasteful number, since it uses less digits than its factorization.

30263976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140126 (or 140116 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 30263976 is about 5501.2703987352. The cubic root of 30263976 is about 311.6319624806.

The spelling of 30263976 in words is "thirty million, two hundred sixty-three thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 140111 280222 420333 560444 840666 1120888 1260999 1681332 2521998 3362664 3782997 5043996 7565994 10087992 15131988 30263976