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545024253 = 31911538293
BaseRepresentation
bin100000011111000…
…110100011111101
31101222120002201110
4200133012203331
52104011234003
6130025432233
716335425664
oct4037064375
91358502643
10545024253
1125a719874
1213263b679
1388bba777
1452555ddb
1532cada03
hex207c68fd

545024253 has 16 divisors (see below), whose sum is σ = 765702080. Its totient is φ = 343885824.

The previous prime is 545024251. The next prime is 545024257. The reversal of 545024253 is 352420545.

It is not a de Polignac number, because 545024253 - 21 = 545024251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545024253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545024251) 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, 61575 + ... + 69867.

It is an arithmetic number, because the mean of its divisors is an integer number (47856380).

Almost surely, 2545024253 is an apocalyptic number.

It is an amenable number.

545024253 is a deficient number, since it is larger than the sum of its proper divisors (220677827).

545024253 is a wasteful number, since it uses less digits than its factorization.

545024253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9468.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 545024253 is about 23345.7544962676. The cubic root of 545024253 is about 816.8430334257.

Adding to 545024253 its reverse (352420545), we get a palindrome (897444798).

The spelling of 545024253 in words is "five hundred forty-five million, twenty-four thousand, two hundred fifty-three".

Divisors: 1 3 19 57 1153 3459 8293 21907 24879 65721 157567 472701 9561829 28685487 181674751 545024253