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113210312021 = 478429285767
BaseRepresentation
bin110100101101111011…
…1000100010101010101
3101211012211011201120022
41221123313010111111
53323323314441041
6124001425514525
711115312526502
oct1513367042525
9354184151508
10113210312021
11440152a7044
1219b35aa2a45
13a8a2639311
14569d6d44a9
152e28d8124b
hex1a5bdc4555

113210312021 has 8 divisors (see below), whose sum is σ = 115633163520. Its totient is φ = 110788049008.

The previous prime is 113210312011. The next prime is 113210312041. The reversal of 113210312021 is 120213012311.

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

It is a cyclic number.

It is not a de Polignac number, because 113210312021 - 230 = 112136570197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113210312011) 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, 253280 + ... + 539046.

It is an arithmetic number, because the mean of its divisors is an integer number (14454145440).

Almost surely, 2113210312021 is an apocalyptic number.

It is an amenable number.

113210312021 is a deficient number, since it is larger than the sum of its proper divisors (2422851499).

113210312021 is an equidigital number, since it uses as much as digits as its factorization.

113210312021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294243.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 113210312021 its reverse (120213012311), we get a palindrome (233423324332).

The spelling of 113210312021 in words is "one hundred thirteen billion, two hundred ten million, three hundred twelve thousand, twenty-one".

Divisors: 1 47 8429 285767 396163 13431049 2408730043 113210312021