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2120024830 = 257112753279
BaseRepresentation
bin111111001011101…
…0000001011111110
312110202012102100011
41332113100023332
513320211243310
6550211253434
7103351625260
oct17627201376
95422172304
102120024830
11998776040
124b1baa27a
1327a2ac681
141617bdb30
15c61c078a
hex7e5d02fe

2120024830 has 32 divisors (see below), whose sum is σ = 4757667840. Its totient is φ = 660786720.

The previous prime is 2120024813. The next prime is 2120024833. The reversal of 2120024830 is 384200212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120024833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375870 + ... + 1377409.

It is an arithmetic number, because the mean of its divisors is an integer number (148677120).

Almost surely, 22120024830 is an apocalyptic number.

2120024830 is an abundant number, since it is smaller than the sum of its proper divisors (2637643010).

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

2120024830 is a wasteful number, since it uses less digits than its factorization.

2120024830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753304.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2120024830 is about 46043.7273686655. The cubic root of 2120024830 is about 1284.6366730080.

The spelling of 2120024830 in words is "two billion, one hundred twenty million, twenty-four thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 2753279 5506558 13766395 19272953 27532790 30286069 38545906 60572138 96364765 151430345 192729530 212002483 302860690 424004966 1060012415 2120024830