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312030210030 = 235721122386533
BaseRepresentation
bin1001000101001100111…
…00110010011111101110
31002211101220220000110120
410202212130302133232
520103014213210110
6355202242145410
731354254011100
oct4424634623756
91084356800416
10312030210030
11110370a12140
1250582352266
132356930cb96
1411160b85570
1581b38ea870
hex48a67327ee

312030210030 has 192 divisors, whose sum is σ = 954604320768. Its totient is φ = 64545949440.

The previous prime is 312030210017. The next prime is 312030210053. The reversal of 312030210030 is 30012030213.

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

It is a junction number, because it is equal to n+sod(n) for n = 312030209991 and 312030210009.

It is a congruent number.

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, 3562644 + ... + 3649176.

It is an arithmetic number, because the mean of its divisors is an integer number (4971897504).

Almost surely, 2312030210030 is an apocalyptic number.

312030210030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 312030210030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477302160384).

312030210030 is an abundant number, since it is smaller than the sum of its proper divisors (642574110738).

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

312030210030 is a wasteful number, since it uses less digits than its factorization.

312030210030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86791 (or 86784 counting only the distinct ones).

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

Adding to 312030210030 its reverse (30012030213), we get a palindrome (342042240243).

The spelling of 312030210030 in words is "three hundred twelve billion, thirty million, two hundred ten thousand, thirty".