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30001012002 = 23213128209453
BaseRepresentation
bin11011111100001100…
…110001110100100010
32212102211012022120200
4123330030301310202
5442420224341002
621440545450030
72111311252203
oct337414616442
985384168520
1030001012002
11117a58753a5
125993340916
132aa165a910
14164862d5aa
15ba8c78b1c
hex6fc331d22

30001012002 has 24 divisors (see below), whose sum is σ = 70002361884. Its totient is φ = 9231080544.

The previous prime is 30001011961. The next prime is 30001012037. The reversal of 30001012002 is 20021010003.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22958613441 + 7042398561 = 151521^2 + 83919^2 .

It is a super-2 number, since 2×300010120022 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64104493 + ... + 64104960.

Almost surely, 230001012002 is an apocalyptic number.

30001012002 is an abundant number, since it is smaller than the sum of its proper divisors (40001349882).

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

30001012002 is a wasteful number, since it uses less digits than its factorization.

30001012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128209474 (or 128209471 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 30001012002 its reverse (20021010003), we get a palindrome (50022022005).

The spelling of 30001012002 in words is "thirty billion, one million, twelve thousand, two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 128209453 256418906 384628359 769256718 1153885077 1666722889 2307770154 3333445778 5000168667 10000337334 15000506001 30001012002