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575311420 = 225231250677
BaseRepresentation
bin100010010010101…
…000111000111100
31111002112211220101
4202102220320330
52134234431140
6133030530444
720154031525
oct4222507074
91432484811
10575311420
11275825a92
12140806a24
1392263378
145659b84c
153579299a
hex224a8e3c

575311420 has 24 divisors (see below), whose sum is σ = 1260683424. Its totient is φ = 220118976.

The previous prime is 575311411. The next prime is 575311439. The reversal of 575311420 is 24113575.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624879 + ... + 625798.

It is an arithmetic number, because the mean of its divisors is an integer number (52528476).

Almost surely, 2575311420 is an apocalyptic number.

It is an amenable number.

575311420 is an abundant number, since it is smaller than the sum of its proper divisors (685372004).

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

575311420 is a wasteful number, since it uses less digits than its factorization.

575311420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250709 (or 1250707 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 575311420 is about 23985.6502934567. The cubic root of 575311420 is about 831.7018451355.

Adding to 575311420 its reverse (24113575), we get a palindrome (599424995).

The spelling of 575311420 in words is "five hundred seventy-five million, three hundred eleven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 1250677 2501354 5002708 6253385 12506770 25013540 28765571 57531142 115062284 143827855 287655710 575311420