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315030542250 = 2353420040723
BaseRepresentation
bin1001001010110010100…
…10001001011110101010
31010010011000112200112010
410211121102021132222
520130140304323000
6400420101500350
731521515266254
oct4453122113652
91103130480463
10315030542250
1111167058a146
125107b1116b6
1323926aac6a8
1411367436cd4
1582dc007d50
hex49594897aa

315030542250 has 32 divisors (see below), whose sum is σ = 786316235328. Its totient is φ = 84008144400.

The previous prime is 315030542237. The next prime is 315030542269. The reversal of 315030542250 is 52245030513.

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 15 ways as a sum of consecutive naturals, for example, 210019612 + ... + 210021111.

It is an arithmetic number, because the mean of its divisors is an integer number (24572382354).

Almost surely, 2315030542250 is an apocalyptic number.

315030542250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

315030542250 is an abundant number, since it is smaller than the sum of its proper divisors (471285693078).

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

315030542250 is a wasteful number, since it uses less digits than its factorization.

315030542250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420040743 (or 420040733 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 315030542250 its reverse (52245030513), we get a palindrome (367275572763).

The spelling of 315030542250 in words is "three hundred fifteen billion, thirty million, five hundred forty-two thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 125 150 250 375 750 420040723 840081446 1260122169 2100203615 2520244338 4200407230 6300610845 10501018075 12601221690 21002036150 31503054225 52505090375 63006108450 105010180750 157515271125 315030542250