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30204372 = 22311415581
BaseRepresentation
bin111001100111…
…0000111010100
32002211112121110
41303032013110
530213014442
62555215020
7514506252
oct163160724
962745543
1030204372
111605aaa0
12a147470
136347013
1440235d2
1529b969c
hex1cce1d4

30204372 has 48 divisors (see below), whose sum is σ = 78773184. Its totient is φ = 8928000.

The previous prime is 30204371. The next prime is 30204397. The reversal of 30204372 is 27340203.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30204371) 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 15 ways as a sum of consecutive naturals, for example, 2622 + ... + 8202.

It is an arithmetic number, because the mean of its divisors is an integer number (1641108).

Almost surely, 230204372 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 30204372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39386592).

30204372 is an abundant number, since it is smaller than the sum of its proper divisors (48568812).

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

30204372 is a wasteful number, since it uses less digits than its factorization.

30204372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5640 (or 5638 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 30204372 is about 5495.8504346461. The cubic root of 30204372 is about 311.4272447349.

Adding to 30204372 its reverse (27340203), we get a palindrome (57544575).

It can be divided in two parts, 30 and 204372, that added together give a palindrome (204402).

The spelling of 30204372 in words is "thirty million, two hundred four thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 11 12 22 33 41 44 66 82 123 132 164 246 451 492 902 1353 1804 2706 5412 5581 11162 16743 22324 33486 61391 66972 122782 184173 228821 245564 368346 457642 686463 736692 915284 1372926 2517031 2745852 5034062 7551093 10068124 15102186 30204372