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2142122701 = 4349816807
BaseRepresentation
bin111111110101110…
…0011001011001101
312112021210002220211
41333223203023031
513341340411301
6552321042421
7104040512455
oct17753431315
95467702824
102142122701
119aa199544
124b9486411
13281a48934
141646d2d65
15c80d8051
hex7fae32cd

2142122701 has 4 divisors (see below), whose sum is σ = 2191939552. Its totient is φ = 2092305852.

The previous prime is 2142122699. The next prime is 2142122711. The reversal of 2142122701 is 1072212412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2142122701 - 21 = 2142122699 is a prime.

It is a super-2 number, since 2×21421227012 = 9177379332279070802, 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 (2142122711) 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, 24908361 + ... + 24908446.

It is an arithmetic number, because the mean of its divisors is an integer number (547984888).

Almost surely, 22142122701 is an apocalyptic number.

It is an amenable number.

2142122701 is a deficient number, since it is larger than the sum of its proper divisors (49816851).

2142122701 is an equidigital number, since it uses as much as digits as its factorization.

2142122701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49816850.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2142122701 is about 46283.0714300596. The cubic root of 2142122701 is about 1289.0846823019.

The spelling of 2142122701 in words is "two billion, one hundred forty-two million, one hundred twenty-two thousand, seven hundred one".

Divisors: 1 43 49816807 2142122701