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30500532 = 2232847237
BaseRepresentation
bin111010001011…
…0011010110100
32010101120212100
41310112122310
530302004112
63005422100
7520151556
oct164263264
963346770
1030500532
1116242557
12a26a930
13641ba6a
14409d4d6
152a272dc
hex1d166b4

30500532 has 18 divisors (see below), whose sum is σ = 77098658. Its totient is φ = 10166832.

The previous prime is 30500527. The next prime is 30500539. The reversal of 30500532 is 23500503.

It can be written as a sum of positive squares in only one way, i.e., 22240656 + 8259876 = 4716^2 + 2874^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30500539) 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 5 ways as a sum of consecutive naturals, for example, 423583 + ... + 423654.

Almost surely, 230500532 is an apocalyptic number.

It is an amenable number.

30500532 is an abundant number, since it is smaller than the sum of its proper divisors (46598126).

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

30500532 is a wasteful number, since it uses less digits than its factorization.

30500532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847247 (or 847242 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 30500532 is about 5522.7286734005. The cubic root of 30500532 is about 312.4418050567.

The spelling of 30500532 in words is "thirty million, five hundred thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 847237 1694474 2541711 3388948 5083422 7625133 10166844 15250266 30500532