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253948 = 2263487
BaseRepresentation
bin111101111111111100
3110220100111
4331333330
531111243
65235404
72105242
oct757774
9426314
10253948
11163882
12102b64
138b786
1468792
155039d
hex3dffc

253948 has 6 divisors (see below), whose sum is σ = 444416. Its totient is φ = 126972.

The previous prime is 253937. The next prime is 253949. The reversal of 253948 is 849352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253949) by changing a digit.

253948 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31740 + ... + 31747.

2253948 is an apocalyptic number.

It is an amenable number.

253948 is a deficient number, since it is larger than the sum of its proper divisors (190468).

253948 is a wasteful number, since it uses less digits than its factorization.

253948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63491 (or 63489 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 253948 is about 503.9325351672. The cubic root of 253948 is about 63.3259332690.

The spelling of 253948 in words is "two hundred fifty-three thousand, nine hundred forty-eight".

Divisors: 1 2 4 63487 126974 253948