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252223998 = 231331104311
BaseRepresentation
bin11110000100010…
…10000111111110
3122120121022021120
433002022013332
51004032131443
641010011410
76151603635
oct1702120776
9576538246
10252223998
1111a412694
1270576b66
1340340a90
14256d851c
1517223083
hexf08a1fe

252223998 has 32 divisors (see below), whose sum is σ = 560781312. Its totient is φ = 75103200.

The previous prime is 252223973. The next prime is 252223999. The reversal of 252223998 is 899322252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252223999) 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, 49738 + ... + 54573.

It is an arithmetic number, because the mean of its divisors is an integer number (17524416).

Almost surely, 2252223998 is an apocalyptic number.

252223998 is an abundant number, since it is smaller than the sum of its proper divisors (308557314).

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

252223998 is a wasteful number, since it uses less digits than its factorization.

252223998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104360.

The product of its digits is 155520, while the sum is 42.

The square root of 252223998 is about 15881.5615730948. The cubic root of 252223998 is about 631.8230540662.

The spelling of 252223998 in words is "two hundred fifty-two million, two hundred twenty-three thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 13 26 31 39 62 78 93 186 403 806 1209 2418 104311 208622 312933 625866 1356043 2712086 3233641 4068129 6467282 8136258 9700923 19401846 42037333 84074666 126111999 252223998