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223002420 = 22353716707
BaseRepresentation
bin11010100101010…
…11111100110100
3120112121200210220
431102223330310
5424042034140
634043414340
75345326554
oct1522537464
9515550726
10223002420
11104974023
12628243b0
133727c1c4
142188d164
151489ebd0
hexd4abf34

223002420 has 24 divisors (see below), whose sum is σ = 624406944. Its totient is φ = 59467296.

The previous prime is 223002407. The next prime is 223002433. The reversal of 223002420 is 24200322.

It is an interprime number because it is at equal distance from previous prime (223002407) and next prime (223002433).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 223002420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1858294 + ... + 1858413.

It is an arithmetic number, because the mean of its divisors is an integer number (26016956).

Almost surely, 2223002420 is an apocalyptic number.

223002420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223002420 is an abundant number, since it is smaller than the sum of its proper divisors (401404524).

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

223002420 is a wasteful number, since it uses less digits than its factorization.

223002420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716719 (or 3716717 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 223002420 is about 14933.2655504414. The cubic root of 223002420 is about 606.4148930433.

Adding to 223002420 its reverse (24200322), we get a palindrome (247202742).

The spelling of 223002420 in words is "two hundred twenty-three million, two thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3716707 7433414 11150121 14866828 18583535 22300242 37167070 44600484 55750605 74334140 111501210 223002420