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2120152319 = 3208966071
BaseRepresentation
bin111111001011110…
…1111010011111111
312110202102220012222
41332113233103333
513320224333234
6550214115555
7103352666045
oct17627572377
95422386188
102120152319
119988528aa
124b204bbbb
1327a3256cc
14161814395
15c61e842e
hex7e5ef4ff

2120152319 has 4 divisors (see below), whose sum is σ = 2120250480. Its totient is φ = 2120054160.

The previous prime is 2120152291. The next prime is 2120152327. The reversal of 2120152319 is 9132510212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2120152319 - 28 = 2120152063 is a prime.

It is a super-2 number, since 2×21201523192 = 8990091711522155522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120152219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947 + ... + 65124.

It is an arithmetic number, because the mean of its divisors is an integer number (530062620).

Almost surely, 22120152319 is an apocalyptic number.

2120152319 is a deficient number, since it is larger than the sum of its proper divisors (98161).

2120152319 is an equidigital number, since it uses as much as digits as its factorization.

2120152319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98160.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 2120152319 is about 46045.1117818168. Note that the first 3 decimals coincide. The cubic root of 2120152319 is about 1284.6624232979.

The spelling of 2120152319 in words is "two billion, one hundred twenty million, one hundred fifty-two thousand, three hundred nineteen".

Divisors: 1 32089 66071 2120152319