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212015157060 = 223572377326699
BaseRepresentation
bin1100010101110100010…
…1101000111101000100
3202021020200220220102110
43011131011220331010
511433201340011220
6241222020341020
721213635046300
oct3053505507504
9667220826373
10212015157060
1181a08035573
123510b544770
1316cba65c975
14a393b26d00
1557ad1dabe0
hex315d168f44

212015157060 has 288 divisors, whose sum is σ = 718969910400. Its totient is φ = 46503217152.

The previous prime is 212015157019. The next prime is 212015157091. The reversal of 212015157060 is 60751510212.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7927591 + ... + 7954289.

It is an arithmetic number, because the mean of its divisors is an integer number (2496423300).

Almost surely, 2212015157060 is an apocalyptic number.

212015157060 is a gapful number since it is divisible by the number (20) 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 212015157060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359484955200).

212015157060 is an abundant number, since it is smaller than the sum of its proper divisors (506954753340).

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

212015157060 is a wasteful number, since it uses less digits than its factorization.

212015157060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26835 (or 26826 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

Adding to 212015157060 its reverse (60751510212), we get a palindrome (272766667272).

The spelling of 212015157060 in words is "two hundred twelve billion, fifteen million, one hundred fifty-seven thousand, sixty".