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2040120030 = 235135231077
BaseRepresentation
bin111100110011001…
…1100001011011110
312021011211211120010
41321212130023132
513134232320110
6534234504050
7101361506544
oct17146341336
95234754503
102040120030
1195765a413
1248b295026
13266883720
14154d3dd94
15be18a020
hex7999c2de

2040120030 has 32 divisors (see below), whose sum is σ = 5272926624. Its totient is φ = 502183296.

The previous prime is 2040120011. The next prime is 2040120067. The reversal of 2040120030 is 300210402.

It is a junction number, because it is equal to n+sod(n) for n = 2040119988 and 2040120015.

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, 2615149 + ... + 2615928.

It is an arithmetic number, because the mean of its divisors is an integer number (164778957).

Almost surely, 22040120030 is an apocalyptic number.

2040120030 is an abundant number, since it is smaller than the sum of its proper divisors (3232806594).

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

2040120030 is a wasteful number, since it uses less digits than its factorization.

2040120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231100.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2040120030 is about 45167.6878974339. The cubic root of 2040120030 is about 1268.2900147501.

Adding to 2040120030 its reverse (300210402), we get a palindrome (2340330432).

The spelling of 2040120030 in words is "two billion, forty million, one hundred twenty thousand, thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 5231077 10462154 15693231 26155385 31386462 52310770 68004001 78466155 136008002 156932310 204012003 340020005 408024006 680040010 1020060015 2040120030