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253155254 = 211471032377
BaseRepresentation
bin11110001011011…
…01011110110110
3122122100121201112
433011231132312
51004301432004
641041555022
76162532652
oct1705553666
9578317645
10253155254
1111a999320
1270945a72
13405a8911
142589ba62
1517358e6e
hexf16d7b6

253155254 has 32 divisors (see below), whose sum is σ = 427355136. Its totient is φ = 111481920.

The previous prime is 253155251. The next prime is 253155271. The reversal of 253155254 is 452551352.

It is a self number, because there is not a number n which added to its sum of digits gives 253155254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253155251) 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, 105314 + ... + 107690.

It is an arithmetic number, because the mean of its divisors is an integer number (13354848).

Almost surely, 2253155254 is an apocalyptic number.

253155254 is a deficient number, since it is larger than the sum of its proper divisors (174199882).

253155254 is a wasteful number, since it uses less digits than its factorization.

253155254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540.

The product of its digits is 30000, while the sum is 32.

The square root of 253155254 is about 15910.8533397804. The cubic root of 253155254 is about 632.5997001569.

The spelling of 253155254 in words is "two hundred fifty-three million, one hundred fifty-five thousand, two hundred fifty-four".

Divisors: 1 2 11 22 47 94 103 206 517 1034 1133 2266 2377 4754 4841 9682 26147 52294 53251 106502 111719 223438 244831 489662 1228909 2457818 2693141 5386282 11507057 23014114 126577627 253155254