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30010222020 = 22354383140143
BaseRepresentation
bin11011111100101111…
…111010010111000100
32212110110112020100110
4123330233322113010
5442430104101040
621441515113020
72111452451442
oct337457722704
985413466313
1030010222020
11117aaa95a89
125996442770
132aa3533a2c
141649949b92
15ba9997980
hex6fcbfa5c4

30010222020 has 96 divisors (see below), whose sum is σ = 87019333632. Its totient is φ = 7722384768.

The previous prime is 30010222019. The next prime is 30010222031. The reversal of 30010222020 is 2022201003.

It is a super-2 number, since 2×300102220202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30010221987 and 30010222005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144069 + ... + 284211.

It is an arithmetic number, because the mean of its divisors is an integer number (906451392).

Almost surely, 230010222020 is an apocalyptic number.

30010222020 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 30010222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43509666816).

30010222020 is an abundant number, since it is smaller than the sum of its proper divisors (57009111612).

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

30010222020 is a wasteful number, since it uses less digits than its factorization.

30010222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140281 (or 140279 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 30010222020 its reverse (2022201003), we get a palindrome (32032423023).

The spelling of 30010222020 in words is "thirty billion, ten million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 83 86 129 166 172 215 249 258 332 415 430 498 516 645 830 860 996 1245 1290 1660 2490 2580 3569 4980 7138 10707 14276 17845 21414 35690 42828 53535 71380 107070 140143 214140 280286 420429 560572 700715 840858 1401430 1681716 2102145 2802860 4204290 6026149 8408580 11631869 12052298 18078447 23263738 24104596 30130745 34895607 36156894 46527476 58159345 60261490 69791214 72313788 90392235 116318690 120522980 139582428 174478035 180784470 232637380 348956070 361568940 500170367 697912140 1000340734 1500511101 2000681468 2500851835 3001022202 5001703670 6002044404 7502555505 10003407340 15005111010 30010222020