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2135442253 = 71877162527
BaseRepresentation
bin111111101001000…
…0100001101001101
312111211012201001211
41333102010031031
513333133123003
6551521534421
7103626650110
oct17722041515
95454181054
102135442253
119a644640a
124b71a4411
13280549cc9
14163874577
15c771896d
hex7f48434d

2135442253 has 8 divisors (see below), whose sum is σ = 2441820672. Its totient is φ = 1829392656.

The previous prime is 2135442203. The next prime is 2135442259. The reversal of 2135442253 is 3522445312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2135442253 - 29 = 2135441741 is a prime.

It is a super-2 number, since 2×21354422532 = 9120227231795432018, 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 (2135442259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68125 + ... + 94402.

It is an arithmetic number, because the mean of its divisors is an integer number (305227584).

Almost surely, 22135442253 is an apocalyptic number.

It is an amenable number.

2135442253 is a deficient number, since it is larger than the sum of its proper divisors (306378419).

2135442253 is a wasteful number, since it uses less digits than its factorization.

2135442253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164411.

The product of its digits is 28800, while the sum is 31.

The square root of 2135442253 is about 46210.8456209146. The cubic root of 2135442253 is about 1287.7432355103.

Adding to 2135442253 its reverse (3522445312), we get a palindrome (5657887565).

The spelling of 2135442253 in words is "two billion, one hundred thirty-five million, four hundred forty-two thousand, two hundred fifty-three".

Divisors: 1 7 1877 13139 162527 1137689 305063179 2135442253