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30473430 = 2351378137
BaseRepresentation
bin111010000111…
…1110011010110
32010100012200120
41310033303112
530300122210
63005052410
7520006551
oct164176326
963305616
1030473430
1116224159
12a257106
13640c620
144093698
152a1e270
hex1d0fcd6

30473430 has 32 divisors (see below), whose sum is σ = 78763104. Its totient is φ = 7501056.

The previous prime is 30473419. The next prime is 30473447. The reversal of 30473430 is 3437403.

It is a self number, because there is not a number n which added to its sum of digits gives 30473430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38679 + ... + 39458.

It is an arithmetic number, because the mean of its divisors is an integer number (2461347).

Almost surely, 230473430 is an apocalyptic number.

30473430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30473430 is an abundant number, since it is smaller than the sum of its proper divisors (48289674).

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

30473430 is a wasteful number, since it uses less digits than its factorization.

30473430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78160.

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 30473430 is about 5520.2744496990. The cubic root of 30473430 is about 312.3492350088.

It can be divided in two parts, 30473 and 430, that added together give a palindrome (30903).

The spelling of 30473430 in words is "thirty million, four hundred seventy-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 78137 156274 234411 390685 468822 781370 1015781 1172055 2031562 2344110 3047343 5078905 6094686 10157810 15236715 30473430