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30032011020 = 22351145503047
BaseRepresentation
bin11011111110000011…
…000001111100001100
32212111222112020020110
4123332003001330030
5443001143323040
621444014120020
72112135611304
oct337603017414
985458466213
1030032011020
1111811318420
1259a17b0010
132aa7bc252b
14164c7bc604
15bab84d980
hex6fe0c1f0c

30032011020 has 48 divisors (see below), whose sum is σ = 91734144768. Its totient is φ = 7280487360.

The previous prime is 30032010991. The next prime is 30032011027. The reversal of 30032011020 is 2011023003.

It is a happy number.

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 = 30032010987 and 30032011005.

It is not an unprimeable number, because it can be changed into a prime (30032011027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22750864 + ... + 22752183.

It is an arithmetic number, because the mean of its divisors is an integer number (1911128016).

Almost surely, 230032011020 is an apocalyptic number.

30032011020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30032011020 is an abundant number, since it is smaller than the sum of its proper divisors (61702133748).

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

30032011020 is a wasteful number, since it uses less digits than its factorization.

30032011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45503070 (or 45503068 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 30032011020 its reverse (2011023003), we get a palindrome (32043034023).

The spelling of 30032011020 in words is "thirty billion, thirty-two million, eleven thousand, twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 45503047 91006094 136509141 182012188 227515235 273018282 455030470 500533517 546036564 682545705 910060940 1001067034 1365091410 1501600551 2002134068 2502667585 2730182820 3003201102 5005335170 6006402204 7508002755 10010670340 15016005510 30032011020