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30212032302 = 23212171379167
BaseRepresentation
bin11100001000110001…
…110000011100101110
32212222112021021000100
4130020301300130232
5443333240013202
621513524411530
72116453015554
oct341061603456
985875237010
1030212032302
11118a39a5041
125a31b46ba6
132b062a2cba
14166867dbd4
15bbc55d41c
hex708c7072e

30212032302 has 24 divisors (see below), whose sum is σ = 65513238336. Its totient is φ = 10062395136.

The previous prime is 30212032261. The next prime is 30212032309. The reversal of 30212032302 is 20323021203.

It is a happy number.

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 (30212032309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 667678 + ... + 711489.

It is an arithmetic number, because the mean of its divisors is an integer number (2729718264).

Almost surely, 230212032302 is an apocalyptic number.

30212032302 is an abundant number, since it is smaller than the sum of its proper divisors (35301206034).

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

30212032302 is a wasteful number, since it uses less digits than its factorization.

30212032302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380392 (or 1380389 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30212032302 its reverse (20323021203), we get a palindrome (50535053505).

The spelling of 30212032302 in words is "thirty billion, two hundred twelve million, thirty-two thousand, three hundred two".

Divisors: 1 2 3 6 9 18 1217 2434 3651 7302 10953 21906 1379167 2758334 4137501 8275002 12412503 24825006 1678446239 3356892478 5035338717 10070677434 15106016151 30212032302