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532978890 = 235157113159
BaseRepresentation
bin11111110001001…
…001110011001010
31101010220010120220
4133301021303022
52042420311030
6124515330510
716131150213
oct3761116312
91333803526
10532978890
11253941a24
1212a5b0a36
1386560c32
1450adc40a
1531bcea10
hex1fc49cca

532978890 has 32 divisors (see below), whose sum is σ = 1287308160. Its totient is φ = 141221184.

The previous prime is 532978847. The next prime is 532978891. The reversal of 532978890 is 98879235.

It is not an unprimeable number, because it can be changed into a prime (532978891) 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, 51870 + ... + 61289.

It is an arithmetic number, because the mean of its divisors is an integer number (40228380).

Almost surely, 2532978890 is an apocalyptic number.

532978890 is an abundant number, since it is smaller than the sum of its proper divisors (754329270).

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

532978890 is a wasteful number, since it uses less digits than its factorization.

532978890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113326.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 532978890 is about 23086.3355689031. The cubic root of 532978890 is about 810.7805766020.

The spelling of 532978890 in words is "five hundred thirty-two million, nine hundred seventy-eight thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 157 314 471 785 942 1570 2355 4710 113159 226318 339477 565795 678954 1131590 1697385 3394770 17765963 35531926 53297889 88829815 106595778 177659630 266489445 532978890