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30020100000 = 25355112827
BaseRepresentation
bin11011111101010101…
…100101111110100000
32212111011010002101120
4123331111211332200
5442440121200000
621442510532240
72111632432302
oct337525457640
985434102346
1030020100000
1111805622500
125999807080
132aa55b1ba7
14164ad9b972
15baa7996a0
hex6fd565fa0

30020100000 has 432 divisors, whose sum is σ = 108396374688. Its totient is φ = 7268800000.

The previous prime is 30020099983. The next prime is 30020100017. The reversal of 30020100000 is 102003.

It is an interprime number because it is at equal distance from previous prime (30020099983) and next prime (30020100017).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 36299587 + ... + 36300413.

It is an arithmetic number, because the mean of its divisors is an integer number (250917534).

Almost surely, 230020100000 is an apocalyptic number.

30020100000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30020100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54198187344).

30020100000 is an abundant number, since it is smaller than the sum of its proper divisors (78376274688).

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

30020100000 is an equidigital number, since it uses as much as digits as its factorization.

30020100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 6.

Adding to 30020100000 its reverse (102003), we get a palindrome (30020202003).

The spelling of 30020100000 in words is "thirty billion, twenty million, one hundred thousand".