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553355442 = 23327137813
BaseRepresentation
bin100000111110111…
…000100010110010
31102120020100222000
4200332320202302
52113124333232
6130524154430
716466305113
oct4076704262
91376210860
10553355442
1126439a152
12135398a16
138a846873
14536c420a
15338a727c
hex20fb88b2

553355442 has 32 divisors (see below), whose sum is σ = 1234248960. Its totient is φ = 183766320.

The previous prime is 553355441. The next prime is 553355447. The reversal of 553355442 is 244553355.

It is a junction number, because it is equal to n+sod(n) for n = 553355397 and 553355406.

It is not an unprimeable number, because it can be changed into a prime (553355441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4273 + ... + 33540.

It is an arithmetic number, because the mean of its divisors is an integer number (38570280).

Almost surely, 2553355442 is an apocalyptic number.

553355442 is an abundant number, since it is smaller than the sum of its proper divisors (680893518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

553355442 is a wasteful number, since it uses less digits than its factorization.

553355442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38095 (or 38089 counting only the distinct ones).

The product of its digits is 180000, while the sum is 36.

The square root of 553355442 is about 23523.5082842675. The cubic root of 553355442 is about 820.9840664365.

The spelling of 553355442 in words is "five hundred fifty-three million, three hundred fifty-five thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 271 542 813 1626 2439 4878 7317 14634 37813 75626 113439 226878 340317 680634 1020951 2041902 10247323 20494646 30741969 61483938 92225907 184451814 276677721 553355442