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575757940 = 22585333749
BaseRepresentation
bin100010010100010…
…101111001110100
31111010101112102011
4202110111321310
52134343223230
6133044254004
720160601402
oct4224257164
91433345364
10575757940
1127600050a
121409a1304
139238b694
1456676472
153582ee2a
hex22515e74

575757940 has 24 divisors (see below), whose sum is σ = 1210545000. Its totient is φ = 230026368.

The previous prime is 575757937. The next prime is 575757961. The reversal of 575757940 is 49757575.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52446564 + 523311376 = 7242^2 + 22876^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

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, 186 + ... + 33934.

It is an arithmetic number, because the mean of its divisors is an integer number (50439375).

Almost surely, 2575757940 is an apocalyptic number.

It is an amenable number.

575757940 is an abundant number, since it is smaller than the sum of its proper divisors (634787060).

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

575757940 is a wasteful number, since it uses less digits than its factorization.

575757940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34611 (or 34609 counting only the distinct ones).

The product of its (nonzero) digits is 1543500, while the sum is 49.

The square root of 575757940 is about 23994.9565534093. The cubic root of 575757940 is about 831.9169607860.

The spelling of 575757940 in words is "five hundred seventy-five million, seven hundred fifty-seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 853 1706 3412 4265 8530 17060 33749 67498 134996 168745 337490 674980 28787897 57575794 115151588 143939485 287878970 575757940