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253102330 = 25135932999
BaseRepresentation
bin11110001011000…
…00100011111010
3122122020221010101
433011200203322
51004243233310
641040510014
76162222445
oct1705404372
9578227111
10253102330
1111a962588
127091b30a
134058a7c0
142588665c
151734843a
hexf1608fa

253102330 has 32 divisors (see below), whose sum is σ = 498960000. Its totient is φ = 91866432.

The previous prime is 253102309. The next prime is 253102331. The reversal of 253102330 is 33201352.

253102330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 253102298 and 253102307.

It is not an unprimeable number, because it can be changed into a prime (253102331) 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, 8830 + ... + 24169.

It is an arithmetic number, because the mean of its divisors is an integer number (15592500).

Almost surely, 2253102330 is an apocalyptic number.

253102330 is a deficient number, since it is larger than the sum of its proper divisors (245857670).

253102330 is a wasteful number, since it uses less digits than its factorization.

253102330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33078.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 253102330 is about 15909.1901113790. The cubic root of 253102330 is about 632.5556138510. Note that the first 3 decimals are identical.

Adding to 253102330 its reverse (33201352), we get a palindrome (286303682).

The spelling of 253102330 in words is "two hundred fifty-three million, one hundred two thousand, three hundred thirty".

Divisors: 1 2 5 10 13 26 59 65 118 130 295 590 767 1534 3835 7670 32999 65998 164995 329990 428987 857974 1946941 2144935 3893882 4289870 9734705 19469410 25310233 50620466 126551165 253102330