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235105420 = 22511297151
BaseRepresentation
bin11100000001101…
…10110010001100
3121101101121000011
432000312302030
5440141333140
635155043004
75553235354
oct1600666214
9541347004
10235105420
11110790200
12668a0464
1339929044
142331db64
1515990cea
hexe036c8c

235105420 has 36 divisors (see below), whose sum is σ = 542691072. Its totient is φ = 85492000.

The previous prime is 235105417. The next prime is 235105433. The reversal of 235105420 is 24501532.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 235105391 and 235105400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46156 + ... + 50995.

It is an arithmetic number, because the mean of its divisors is an integer number (15074752).

Almost surely, 2235105420 is an apocalyptic number.

235105420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235105420 is an abundant number, since it is smaller than the sum of its proper divisors (307585652).

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

235105420 is a wasteful number, since it uses less digits than its factorization.

235105420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97182 (or 97169 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 235105420 is about 15333.1477525001. The cubic root of 235105420 is about 617.1928417142.

Adding to 235105420 its reverse (24501532), we get a palindrome (259606952).

The spelling of 235105420 in words is "two hundred thirty-five million, one hundred five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 220 242 484 605 1210 2420 97151 194302 388604 485755 971510 1068661 1943020 2137322 4274644 5343305 10686610 11755271 21373220 23510542 47021084 58776355 117552710 235105420