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253944200 = 23525323957
BaseRepresentation
bin11110010001011…
…10000110001000
3122200211200221202
433020232012020
51010002203300
641110523332
76202330046
oct1710560610
9580750852
10253944200
11120388044
1271066548
13407c3a53
1425a25396
1517462ad5
hexf22e188

253944200 has 48 divisors (see below), whose sum is σ = 601585380. Its totient is φ = 99656960.

The previous prime is 253944191. The next prime is 253944217. The reversal of 253944200 is 2449352.

It can be written as a sum of positive squares in 6 ways, for example, as 162970756 + 90973444 = 12766^2 + 9538^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1379 + ... + 22578.

Almost surely, 2253944200 is an apocalyptic number.

253944200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253944200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300792690).

253944200 is an abundant number, since it is smaller than the sum of its proper divisors (347641180).

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

253944200 is a wasteful number, since it uses less digits than its factorization.

253944200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24026 (or 24017 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 253944200 is about 15935.6267526571. The cubic root of 253944200 is about 633.2561740411.

The spelling of 253944200 in words is "two hundred fifty-three million, nine hundred forty-four thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 53 100 106 200 212 265 424 530 1060 1325 2120 2650 5300 10600 23957 47914 95828 119785 191656 239570 479140 598925 958280 1197850 1269721 2395700 2539442 4791400 5078884 6348605 10157768 12697210 25394420 31743025 50788840 63486050 126972100 253944200