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30201312133020 = 22357647206953717
BaseRepresentation
bin1101101110111110010100…
…11110110011111110011100
310221221012212100222201002210
412313133022132303332130
512424304241401224040
6144122142524520420
76234654445316010
oct667371236637634
9127835770881083
1030201312133020
119694339397206
1234792723b0110
1313b0c82553aa2
14765a7382a540
15375913538480
hex1b77ca7b3f9c

30201312133020 has 192 divisors, whose sum is σ = 96842157189120. Its totient is φ = 6889028011008.

The previous prime is 30201312133007. The next prime is 30201312133043. The reversal of 30201312133020 is 2033121310203.

It is a super-2 number, since 2×302013121330202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 562203202 + ... + 562256918.

It is an arithmetic number, because the mean of its divisors is an integer number (504386235360).

Almost surely, 230201312133020 is an apocalyptic number.

30201312133020 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 30201312133020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48421078594560).

30201312133020 is an abundant number, since it is smaller than the sum of its proper divisors (66640845056100).

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

30201312133020 is a wasteful number, since it uses less digits than its factorization.

30201312133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56452 (or 56450 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30201312133020 its reverse (2033121310203), we get a palindrome (32234433443223).

The spelling of 30201312133020 in words is "thirty trillion, two hundred one billion, three hundred twelve million, one hundred thirty-three thousand, twenty".