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30033112020 = 2235757661231
BaseRepresentation
bin11011111110000111…
…001110101111010100
32212112001121011112020
4123332013032233110
5443001434041040
621444053453140
72112151145232
oct337607165724
985461534466
1030033112020
11118119aa63a
1259a20411b0
132aa81b9702
14164c9c7952
15bab9b9cd0
hex6fe1cebd4

30033112020 has 48 divisors (see below), whose sum is σ = 84203927808. Its totient is φ = 7998238080.

The previous prime is 30033111991. The next prime is 30033112049. The reversal of 30033112020 is 2021133003.

It is an interprime number because it is at equal distance from previous prime (30033111991) and next prime (30033112049).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285196 + ... + 376035.

It is an arithmetic number, because the mean of its divisors is an integer number (1754248496).

Almost surely, 230033112020 is an apocalyptic number.

30033112020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30033112020 is an abundant number, since it is smaller than the sum of its proper divisors (54170815788).

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

30033112020 is a wasteful number, since it uses less digits than its factorization.

30033112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662000 (or 661998 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30033112020 its reverse (2021133003), we get a palindrome (32054245023).

The spelling of 30033112020 in words is "thirty billion, thirty-three million, one hundred twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 757 1514 2271 3028 3785 4542 7570 9084 11355 15140 22710 45420 661231 1322462 1983693 2644924 3306155 3967386 6612310 7934772 9918465 13224620 19836930 39673860 500551867 1001103734 1501655601 2002207468 2502759335 3003311202 5005518670 6006622404 7508278005 10011037340 15016556010 30033112020