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313020030 = 23543324097
BaseRepresentation
bin10010101010000…
…100111001111110
3210211000001202110
4102222010321332
51120113120110
651021034450
710520424561
oct2252047176
9724001673
10313020030
11150767644
12889b5a26
134cb0916b
142d8024d8
151c731a20
hex12a84e7e

313020030 has 32 divisors (see below), whose sum is σ = 753014304. Its totient is φ = 83275776.

The previous prime is 313020023. The next prime is 313020049. The reversal of 313020030 is 30020313.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 313019988 and 313020015.

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, 942 + ... + 25038.

It is an arithmetic number, because the mean of its divisors is an integer number (23531697).

Almost surely, 2313020030 is an apocalyptic number.

313020030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

313020030 is an abundant number, since it is smaller than the sum of its proper divisors (439994274).

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

313020030 is a wasteful number, since it uses less digits than its factorization.

313020030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24540.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 313020030 is about 17692.3720851671. The cubic root of 313020030 is about 678.9806164995.

Adding to 313020030 its reverse (30020313), we get a palindrome (343040343).

The spelling of 313020030 in words is "three hundred thirteen million, twenty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 433 866 1299 2165 2598 4330 6495 12990 24097 48194 72291 120485 144582 240970 361455 722910 10434001 20868002 31302003 52170005 62604006 104340010 156510015 313020030