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310231020030 = 23534031303871
BaseRepresentation
bin1001000001110110011…
…01011011000111111110
31002122202112101200202220
410200323031123013332
520040323120120110
6354303531230210
731261546106151
oct4407315330776
91078675350686
10310231020030
1110a628361058
125015b8a8366
1323340644709
141102dc3dc98
15810a9a2370
hex483b35b1fe

310231020030 has 32 divisors (see below), whose sum is σ = 744578777088. Its totient is φ = 82725568800.

The previous prime is 310231020019. The next prime is 310231020059. The reversal of 310231020030 is 30020132013.

It is a super-2 number, since 2×3102310200302 (a number of 24 digits) contains 22 as substring.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 310231019991 and 310231020009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868995 + ... + 1172865.

It is an arithmetic number, because the mean of its divisors is an integer number (23268086784).

Almost surely, 2310231020030 is an apocalyptic number.

310231020030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

310231020030 is an abundant number, since it is smaller than the sum of its proper divisors (434347757058).

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

310231020030 is a wasteful number, since it uses less digits than its factorization.

310231020030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337912.

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

Adding to 310231020030 its reverse (30020132013), we get a palindrome (340251152043).

The spelling of 310231020030 in words is "three hundred ten billion, two hundred thirty-one million, twenty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 34031 68062 102093 170155 204186 303871 340310 510465 607742 911613 1020930 1519355 1823226 3038710 4558065 9116130 10341034001 20682068002 31023102003 51705170005 62046204006 103410340010 155115510015 310231020030