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22350013 = 77874057
BaseRepresentation
bin101010101000…
…0100010111101
31120001111110021
41111100202331
521210200023
62115012141
7360654250
oct125204275
946044407
1022350013
1111685994
12759a051
134826c7a
142d7b097
151e6735d
hex15508bd

22350013 has 8 divisors (see below), whose sum is σ = 25581632. Its totient is φ = 19128096.

The previous prime is 22350011. The next prime is 22350017. The reversal of 22350013 is 31005322.

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 22350013 - 21 = 22350011 is a prime.

It is a super-2 number, since 2×223500132 = 999046162200338, 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 (22350011) 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, 3481 + ... + 7537.

It is an arithmetic number, because the mean of its divisors is an integer number (3197704).

Almost surely, 222350013 is an apocalyptic number.

It is an amenable number.

22350013 is a deficient number, since it is larger than the sum of its proper divisors (3231619).

22350013 is an equidigital number, since it uses as much as digits as its factorization.

22350013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4851.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 22350013 is about 4727.5800363399. The cubic root of 22350013 is about 281.6821066117.

Adding to 22350013 its reverse (31005322), we get a palindrome (53355335).

The spelling of 22350013 in words is "twenty-two million, three hundred fifty thousand, thirteen".

Divisors: 1 7 787 4057 5509 28399 3192859 22350013