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30011203950 = 235272131961271
BaseRepresentation
bin11011111100110011…
…101010000101101110
32212110112101010022020
4123330303222011232
5442430332011300
621441552131010
72111464011300
oct337463520556
985415333266
1030011203950
11118005a67a2
125996836a66
132aa37b8960
141649b23970
15ba9add8a0
hex6fccea16e

30011203950 has 576 divisors, whose sum is σ = 100123591680. Its totient is φ = 5878656000.

The previous prime is 30011203927. The next prime is 30011203951. The reversal of 30011203950 is 5930211003.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30011203950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30011203951) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 110742315 + ... + 110742585.

It is an arithmetic number, because the mean of its divisors is an integer number (173825680).

Almost surely, 230011203950 is an apocalyptic number.

30011203950 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30011203950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50061795840).

30011203950 is an abundant number, since it is smaller than the sum of its proper divisors (70112387730).

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

30011203950 is a wasteful number, since it uses less digits than its factorization.

30011203950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

Adding to 30011203950 its reverse (5930211003), we get a palindrome (35941414953).

The spelling of 30011203950 in words is "thirty billion, eleven million, two hundred three thousand, nine hundred fifty".