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426890562 = 23779128659
BaseRepresentation
bin11001011100011…
…101010101000010
31002202021021202120
4121130131111002
51333240444222
6110205425110
713402336620
oct3134352502
91082237676
10426890562
111a9a7221a
12bab6b196
136a598187
14409a4510
152772615c
hex1971d542

426890562 has 32 divisors (see below), whose sum is σ = 988108800. Its totient is φ = 120423888.

The previous prime is 426890549. The next prime is 426890573. The reversal of 426890562 is 265098624.

It is a super-3 number, since 3×4268905623 (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61012 + ... + 67647.

It is an arithmetic number, because the mean of its divisors is an integer number (30878400).

Almost surely, 2426890562 is an apocalyptic number.

426890562 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

426890562 is an abundant number, since it is smaller than the sum of its proper divisors (561218238).

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

426890562 is a wasteful number, since it uses less digits than its factorization.

426890562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128750.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 426890562 is about 20661.3301120717. The cubic root of 426890562 is about 752.9604835623.

It can be divided in two parts, 4268 and 90562, that added together give a triangular number (94830 = T435).

The spelling of 426890562 in words is "four hundred twenty-six million, eight hundred ninety thousand, five hundred sixty-two".

Divisors: 1 2 3 6 7 14 21 42 79 158 237 474 553 1106 1659 3318 128659 257318 385977 771954 900613 1801226 2701839 5403678 10164061 20328122 30492183 60984366 71148427 142296854 213445281 426890562